1. Introduction
The concept of divine revelation (waḥy) holds a central role in Islamic thought. It has been deeply examined from both philosophical and theological perspectives and has been approached in distinct ways by two different schools of thought. Among the Islamic philosophers, Ibn Sīnā (980–1037) emerges as a thinker who grounds divine revelation in intellectual and metaphysical processes, while the theologian Ghazālī (1058–1111) considers divine revelation to be a mystical experience and a source of divine knowledge. Both thinkers employ their own epistemological and metaphysical approaches to explain the concept of divine revelation. The primary aim of this article is to elucidate how Ibn Sīnā and Ghazālī’s conceptions of divine revelation differ and converge within the framework of metaphysical and epistemological foundations. This study seeks to contribute to an understanding of how these two thinkers’ views on the processes of divine revelation help establish the balance between reason and intuition in Islamic thought. Additionally, one of the main objectives of this work is to analyze how philosophical and theological approaches add depth to the concept of divine revelation. This study will draw upon an examination of the fundamental works of these two thinkers to shed light on their metaphysical and epistemological approaches. The sources utilized throughout this study consist of both classical works from the Islamic world and academic research from the Western world.
Despite representing different approaches within the history of Islamic thought, Ibn Sīnā and Ghazālī share several important commonalities. Both thinkers engaged in profound explorations of metaphysics and epistemology, evaluating the concept of divine revelation within this framework. While Ibn Sīnā sought to understand the nature of divine revelation through a philosophical approach that prioritized reason and logic, Ghazālī defined the boundaries of reason and divine revelation, emphasizing the importance of mystical and theological experience. Both thinkers acknowledged the role of reason in humanity’s pursuit of truth. However, Ghazālī, arguing that reason alone is insufficient, advocated for the necessity of divine knowledge or divine revelation. In this context, Ghazālī, in his work al-Munqidh min al-Ḍalāl, criticizes the views of the philosophers, particularly those of Ibn Sīnā, with the following words:
“It is in the metaphysical sciences that most of the philosophers’ errors are found. Owing to the fact that they could not carry out apodeictic demonstration according to the conditions they had postulated in logic, they differed a great deal about metaphysical questions”.
Although Ghazālī generally criticizes the philosophers here, he was influenced by Ibn Sīnā’s rational philosophy and sought to balance philosophy with Sufism and theology.
2. Theological and Philosophical Challenges Related to Divine Revelation
How can divine revelation be accurately conveyed from an infinite and omniscient God to a limited and fallible human being? This is a critical theological and philosophical question. Is the human intellect sufficient for fully comprehending the divine message? Can the clarity of divine revelation be compromised due to differing perceptions among individuals and their cultural or psychological biases? The necessity for God to deliver His message in a manner comprehensible to human understanding, and whether humans are prepared to grasp this message, raises fundamental questions regarding the comprehensibility of divine revelation. One of the significant epistemological barriers to understanding divine revelation is the limited nature of human intellect and the cultural and psychological prejudices that come with it. When receiving divine messages, the human mind may fail to fully comprehend divine revelation due to its cognitive limitations and inherent conditioning. These barriers can lead to distortions in interpreting divine knowledge. Moreover, reason may be inadequate in perceiving metaphysical realities, which complicates the direct and clear understanding of divine revelation. This raises the critical issue of whether human intellectual capacity is sufficient to grasp divine revelation. One of the theological obstacles to understanding divine revelation is the moral state and will of the individual. Morally corrupt or spiritually unprepared individuals may fail to comprehend the deeper meanings of the divine message. When the human will is not aligned with the divine will, accepting and acting upon divine revelation becomes difficult. Consequently, for effective comprehension of divine revelation, one must undergo moral and spiritual purification and orient their will towards divine truths. The capacity to properly perceive God’s message is closely linked to one’s spiritual and moral readiness (
King 2008, pp. 131–37).
From the perspective of the psychology of religion, understanding divine revelation in Islam presents unique challenges due to its complex nature, both cognitively and spiritually. Divine revelation, as understood in Islam, is seen as divine communication transmitted through prophets, which involves metaphysical realities that transcend ordinary human experiences. One of the primary difficulties lies in the human mind’s ability to grasp abstract and transcendent concepts. Psychologically, individuals may struggle with accepting or internalizing these metaphysical truths, especially in a modern secular context where empirical evidence is often emphasized over spiritual or supernatural explanations. Moreover, the personal and emotional dimensions of faith can also affect how individuals comprehend divine revelation. The concept of divine revelation requires a degree of spiritual openness and emotional receptivity, which can be influenced by an individual’s psychological disposition, personal experiences, and cultural background. In some cases, psychological barriers such as doubt, cognitive dissonance, or even past trauma may hinder the ability to fully embrace the idea of divine revelation as a divine truth. Additionally, for believers, there may be a tension between rational analysis and spiritual conviction, creating an internal conflict that further complicates the comprehension of divine revelation (
Bulut 2022, pp. 605–39).
In addressing the obstacles to understanding divine revelation, the two Islamic thinkers analyzed in this study, Ibn Sīnā and Ghazālī, approach the matter from different perspectives, each providing solutions to overcome these challenges. Ghazālī views divine revelation as divine knowledge that transcends the limits of human reason. According to him, reason cannot fully grasp divine revelation because it excels only in understanding the material world; when it comes to divine truths and metaphysical realities, reason falls short. Ghazālī argues that divine revelation can only be understood through spiritual purification, intuition, and inspiration. In this sense, both the heart and the mind must be engaged in comprehending divine revelation, as divine knowledge originates from a source beyond reason. On the other hand, Ibn Sīnā addresses the philosophical challenges surrounding divine revelation by asserting that it occurs at the highest level of human intellect, with divine knowledge being transmitted to the prophet’s mind through the Active Intellect (al-ʿaql al-faʿʿāl). The Active Intellect serves as a universal intellectual power that conveys divine knowledge to the human mind. Prophets, in turn, establish a direct connection with the Active Intellect, allowing them to receive this knowledge. The imaginative faculty (al-mutaḥayyila) enables prophets to transform abstract divine knowledge into concrete images and symbols. This faculty allows prophets to present divine revelation in a form that can be understood by their communities. According to Ibn Sīnā, these two faculties ensure that divine revelation can be comprehended and communicated, thereby overcoming the limitations of human intellect.
5. Ibn Sīnā’s Understanding of Divine Revelation and Metaphysical Process
Ibn Sīnā’s understanding of divine revelation is rooted in a philosophical and metaphysical foundation, with the relationship between the Active Intellect and the prophet’s perceptive faculties at its core. According to Ibn Sīnā, divine revelation is a metaphysical process in which divine knowledge is transmitted to the mind of the prophet. This process is explained through the theory of
emanation (
feyḍ), where the Active Intellect plays a central role as the source of this knowledge. The Active Intellect serves as the intermediary through which divine knowledge flows to the prophet, enabling the reception and communication of divine revelation (
Davidson 1992, p. 54). According to Ibn Sīnā’s theory of
feyḍ (emanation), everything in the universe comes into existence through a process of overflow from God. In this process, all beings and intellects emerge in a hierarchical order, starting from God. At the highest level is the First Intellect, and from this intellect, other intellects, universal souls, and the material world are generated. The tenth intellect, known as the Active Intellect, is the one that directly interacts with the human intellect. For Ibn Sīnā, the Active Intellect plays a crucial role in bridging divine knowledge and human understanding, facilitating the reception of intellectual and metaphysical insights (
Corbin 2013, p. 429;
Gutas 2014, pp. 9, 21).
The Active Intellect serves both as an organizer of the universe and as a bridge that transmits divine knowledge to the human mind. Through the Active Intellect, humans develop their capacities for thinking and perception. Divine revelation is received through the special connection that prophets establish with the Active Intellect. In this process, the Active Intellect acts as a mediator, conveying knowledge from God to the prophet’s mind. The prophet’s intellectual capacity is developed to a level where it can directly receive this knowledge from the Active Intellect, allowing divine truths to be communicated to humanity (
Davidson 1992, p. 58). According to Ibn Sīnā, prophets possess perceptual abilities that are stronger and more developed than those of ordinary people. These enhanced faculties enable them to receive knowledge from the Active Intellect more directly and clearly. The perceptual abilities of prophets can be divided into two main components:
The Intellectual Faculty: This faculty allows prophets to receive abstract, universal knowledge from the Active Intellect without the need for sensory input or external stimuli. It enables prophets to comprehend divine truths that are beyond the reach of ordinary human intellects (
Corbin 2013, p. 406;
Gutas 2014, pp. 187–88).
The Imaginative Faculty: This faculty transforms the abstract knowledge received from the Active Intellect into concrete symbols, images, and forms that can be understood and communicated to others. It allows prophets to convey divine knowledge in ways that are accessible to the broader community (
Rahman 1958, p. 36).
These two faculties work together to allow prophets to bridge the gap between the divine and the human, making it possible for them to receive and transmit divine revelation.
According to Ibn Sīnā, the process of divine revelation is an event that occurs when the human mind reaches its highest level of intellectual capacity. This process happens when the prophet establishes a complete union (ittisal) with the Active Intellect. Divine revelation is the direct reception of knowledge from God through this union. The functioning of divine revelation can be explained through the following steps:
a. Knowledge from the Active Intellect: The divine knowledge, originating from God as the source of divine revelation, flows into the prophet’s mind through the Active Intellect. The Active Intellect transmits this knowledge to the prophet’s intellect in the form of abstract concepts (
Corbin 2013, p. 319).
b. Collaboration of Intellect and Imagination: The prophet’s intellect receives these abstract concepts and, through the imaginative faculty, shapes them into concrete representations. The imaginative faculty translates the abstract knowledge into tangible images, symbols, or narratives, making the information communicable to others. The prophet consciously manages this process, ensuring that the divine knowledge is conveyed in a form that can be understood by people (
Inati 2014, p. 185).
c. Transmission of Divine revelation: The prophet communicates the received knowledge to society through language and symbols. At this stage, the prophet’s ability to convey abstract knowledge to people is achieved through the collaboration of both the intellect and the imaginative faculty. This partnership allows the prophet to effectively translate divine truths into understandable forms that can be grasped by the community (
Rahman 1958, p. 36).
According to Ibn Sīnā’s understanding of divine revelation, the Prophet is a person who attains divine knowledge through the Active Intellect, perceives this knowledge, and communicates it to society through the power of the imaginative faculty. In Ibn Sīnā’s philosophical system, divine revelation represents the highest functioning of the human intellect and the attainment of divine knowledge. This metaphysical process operates effectively due to the prophet’s advanced intellectual and imaginative faculties, which enable the reception and transmission of divine truths (
Davidson 1992, p. 20;
Gutas 2014, p. 188;
Inati 2014, p. 61). According to Ibn Sīnā, the angel is an entity that transmits divine knowledge to the prophet’s mind through the Active Intellect. This transmission process is made possible through the prophet’s perceptive abilities and the imaginative faculty. The angel acts as a bridge between God and the prophet, delivering divine knowledge. Ibn Sīnā describes angels as immaterial beings positioned within a metaphysical hierarchy. In this hierarchy, the angel serves as a channel that conveys knowledge from the Active Intellect to the prophet. The abstract concepts coming from the Active Intellect are transmitted to the prophet’s mind through the mediation of the angel, and the prophet’s mind is capable of receiving this knowledge (
Davidson 1992, p. 120).
Ibn Sīnā defines the role of the angel in the process of divine revelation as not only transmitting knowledge from the Active Intellect but also organizing and preparing this knowledge in a form suitable for the prophet’s mind. The angel assists the prophet in making the divine knowledge comprehensible. This knowledge is implanted in the prophet’s mind in the form of concrete images and symbols through the imaginative faculty. The prophet then expresses this knowledge through language, effectively communicating the divine truths to society (
Rahman 1958, p. 74).
In Ibn Sīnā’s epistemology, divine revelation is considered the highest form of intellectual functioning. Divine revelation is the process by which the prophet unites with the Active Intellect and gains access to divine knowledge, which is seen as the pinnacle of knowledge acquisition. According to Ibn Sīnā, the human mind undergoes various stages of intellectual development, and prophets, having reached the highest level of these stages, possess the ability to receive divine revelation. Ibn Sīnā explains the process of knowledge acquisition through four fundamental intellectual faculties:
heyulani intellect (potential intellect),
bilfiil intellect (actual intellect),
müstefad intellect (acquired intellect), and
faal intellect (Active Intellect). Among these, the Active Intellect is the ultimate source that transmits divine knowledge to humans, facilitating the highest form of intellectual and metaphysical understanding (
Corbin 2013, pp. 292, 447;
Gutas 2014, p. 486). Ibn Sīnā describes divine revelation as a phenomenon that occurs at the pinnacle of these intellectual processes, where prophets establish a direct union (
ittisal) with the Active Intellect. This connection allows them to receive divine knowledge, marking the highest achievement of human intellect in the process of divine revelation.
Ibn Sīnā emphasizes that divine revelation comes directly from God through the Active Intellect. The Active Intellect serves as both the organizing force of the universe and the intermediary that transmits knowledge to the human mind. The prophet receives knowledge directly from the Active Intellect, and this knowledge reaches the prophet’s mind as a pure and abstract truth (
Gutas 2014, p. 372). Prophets, unlike ordinary people, possess the ability to perfectly comprehend and transmit this knowledge. Their direct connection with the Active Intellect allows them to reach the highest stage of intellectual processes. According to Ibn Sīnā, the prophet’s ability to access knowledge is dependent on the advanced development of his intellect and perceptive faculties. The prophet’s union with the Active Intellect signifies that he has reached the pinnacle of knowledge acquisition. Prophets receive knowledge as abstract truths from the Active Intellect and, through their imaginative faculties, are able to translate this knowledge into concrete forms that can be communicated to others (
Rahman 1958, p. 38). This process demonstrates that, in epistemological terms, prophets are intellectually superior to other people and their access to divine knowledge represents pure knowledge directly from God. Ibn Sīnā’s epistemological system is grounded in metaphysical principles, focusing on the relationship between the Active Intellect and God as the source of knowledge. Divine revelation is the process by which divine knowledge flows from the Active Intellect to the prophet’s mind. This knowledge is processed in perfect harmony with the prophet’s perceptive and intellectual faculties and then conveyed to society.
In summary, within Ibn Sīnā’s epistemological framework, divine revelation is defined as the highest functioning of the intellect (
Table 1). The prophet’s access to knowledge occurs through a direct union with the Active Intellect, indicating that the prophet’s intellect has reached its highest potential. These epistemological foundations in Ibn Sīnā’s philosophy reveal how divine knowledge reaches the human intellect in its purest form and how the prophet perceives and processes this knowledge.
6. Al-Ghazālī’s Understanding of Divine Revelation
Al-Ghazālī’s understanding of divine revelation is shaped by a blend of theological and mystical thought. As an important theologian within Islamic thought, Ghazālī addresses issues such as God’s attribute of speech and the uncreated nature of the Qur’an (
ghayr-i makhlūq) in line with the Ashʿarī theological tradition. His approach integrates the doctrinal aspects of divine revelation with a mystical emphasis on divine experience, underscoring the transcendent nature of God’s communication with prophets (
Ghazālī 2004, p. 73). According to Ghazālī, divine revelation is a manifestation of God’s attribute of speech (
kalām), through which divine knowledge is transmitted to the prophets. In this context, the Qur’an is emphasized as God’s eternal speech, meaning it is uncreated (
ghayr-i makhlūq). Ghazālī examines God’s attributes within a theological framework, giving detailed attention to the attribute of speech. For him, the attribute of
kalām is an eternal characteristic intrinsic to God’s essence, and the Qur’an represents the most concrete manifestation of this divine attribute (
Frank 1994, p. 48). The attribute of
kalām encompasses God’s eternal knowledge and will, and thus the Qur’an is an expression of God’s speech that transcends creation. According to Ghazālī, God’s attribute of speech is distinct from created things because it is united with God’s essence and is not subject to the limitations of time and space. This attribute, being eternal, exists beyond the confines of creation, and the Qur’an, as a manifestation of this attribute, reflects the divine reality that is uncreated and infinite (
Griffel 2009, p. 115).
When defending the idea that the Qur’an is uncreated, Ghazālī asserts that God’s speech has no temporal beginning and has existed eternally. In this respect, Ghazālī aligns with Ashʿarī theologians and upholds the view that the Qur’an is not created (
maḥlūq). According to this understanding, the Qur’an is an eternal expression of God’s attribute of
kalām, and therefore it is not subject to creation. This position underscores the belief that God’s speech, as manifested in the Qur’an, is timeless and unchanging, existing beyond the confines of temporal reality (
Ghazālī 2000, p. 233;
Jackson 2002, p. 27). This issue has been a subject of significant debate among theologians in Islamic thought. Following the Ashʿarī tradition, Ghazālī asserts that the Qur’an is God’s eternal speech. This stance opposes the view held by the Muʿtazilites, who argued that the Qur’an was created. Ghazālī rejects the idea of God’s speech being created, as it would imply that divine attributes are temporary and finite. For Ghazālī, such a notion contradicts the eternal and unchanging nature of God’s attributes, particularly His speech (
Davidson 1992, p. 138). He accepts that the Qur’an is eternal and uncreated, as this belief aligns with the doctrine of God’s absolute attributes. In this context, Ghazālī emphasizes that the Qur’an is not merely a divine message but is an eternal attribute of God’s speech (
kalām) that exists alongside His essence. Through divine revelation, this divine speech is conveyed to the prophets, who then transmit it to humanity. The uncreated nature of the Qur’an underscores its status as an infinite and absolute divine source, highlighting its transcendence beyond temporal and created reality (
Griffel 2009, p. 115).
Ghazālī does not limit his understanding of divine revelation to a purely theological phenomenon; he also approaches it from a mystical perspective. For him, divine revelation is not merely a method of acquiring knowledge unique to prophets, but it also represents the opening of the heart to divine knowledge through mystical experiences. In Ghazālī’s Sufi approach, the human heart is nourished by sources of divine knowledge, just as revelation is rooted in divine reality. As explained in his works on mysticism, divine revelation is not only a theological concept but also part of a spiritual journey. Ghazālī’s thoughts on divine revelation and the attribute of
kalām are shaped by the Ashʿarī theological tradition but are enriched by mystical depth. He views divine revelation as a gateway to the human soul, asserting that such experiences can also be accessed by individuals outside of prophecy through inspiration and intuition. This connection between divine revelation and mystical experience is a recurring theme in Ghazālī’s Sufi writings. He emphasizes that divine revelation serves as a door to divine truths, not only for prophets but also for those who engage in spiritual practices that allow their hearts to receive divine insights (
Ghazālī 2004, p. 71).
In his Sufi teachings, Ghazālī emphasizes that a person can reach divine truths through the “eye of the heart” (
basīrah). While divine revelation is the direct reception of divine knowledge by prophets from God, mystical experiences allow individuals to approach these truths. According to Ghazālī, access to such truths is possible through purification and the cleansing of the heart. Divine revelation becomes a gateway of inspiration that can open to a person when their heart is purified and oriented toward God. This spiritual path of purification enables individuals to draw closer to divine realities, though not in the same manner as prophets, yet through inspiration and insight (
Griffel 2009, p. 115). Ghazālī argues that in this process, divine revelation is a divine source of knowledge, but he also maintains that intuition and inspiration attained through mystical experiences are similarly connected to this source. He suggests that while divine revelation is unique to prophets, the insights gained through spiritual practices and mystical experiences are linked to the same divine reality, allowing individuals to access aspects of this sacred knowledge through intuition and inner enlightenment (
Jackson 2002, p. 99).
In Ghazālī’s Sufi understanding, intuition (firāsah), inspiration (ilhām), and unveiling (kashf) are key concepts in comprehending divine revelation. These terms point to the human capacity for directly perceiving divine truths. Ghazālī emphasizes that through spiritual purification and inner insight, individuals can gain access to divine knowledge, albeit in a way that complements and parallels the knowledge received through divine revelation by prophets.
Intuition (
Firāsah): According to Ghazālī, intuition is the ability to directly perceive divine truths through the purification of the heart. This ability is illuminated by a divine light from God, much like the knowledge prophets receive through divine revelation. Intuition serves as an important gateway to discovering God’s mysteries and allows individuals to approach a level of truth that is akin to the knowledge received by prophets. Through intuition, the heart becomes receptive to divine realities, making it a significant tool for accessing deeper spiritual insights (
Ghazālī 2000, s. 162).
Inspiration (
Ilhām): According to Ghazālī, inspiration is wisdom and truth that God directly imparts to the heart. Unlike divine revelation, which is exclusive to prophets, inspiration can be granted to non-prophetic individuals as well. Ghazālī views inspiration as a special grace bestowed by God upon His beloved servants (
awliyāʾ). It provides limited access to God’s eternal knowledge, manifesting within the human heart, offering profound insights and spiritual understanding (
Ghazālī 1993, p. 109). Inspiration (
ilhām) can also be conceived as a lower form of the divine revelation received by prophets. It is a type of divine knowledge that is disclosed to individuals through intuition, offering a subtler manifestation of divine truths. While it does not carry the same authority or scope as prophetic divine revelation, inspiration serves as a way for individuals to access and understand aspects of divine wisdom through spiritual insight (
Griffel 2009, p. 115).
Unveiling (
Kashf): In Ghazālī’s thought,
kashf is the process through which an individual uncovers truth through spiritual experience.
Kashf is defined as the ability to see and understand the hidden realities of God. During the Sufi journey, as the heart becomes purified and the influences of the ego diminish, one gains access to God’s secrets. Ghazālī describes
kashf as the lifting of veils from the heart, enabling the individual to reach profound truths and draw closer to God. Through this spiritual unveiling, deep divine realities are revealed to the seeker (
Ghazālī 1980, p. 63).
Ghazālī asserts that, apart from prophethood, individuals can also access divine knowledge through a mystical journey. In this process of acquiring knowledge, intuition, inspiration, and unveiling play significant roles. In this context, Ghazālī proposes that divine knowledge can be attained by those whose inner vision (
basīrah) has been opened, independent of prophethood. However, he maintains that divine revelation is pure divine knowledge that comes through prophets, while mystical experiences function as a part of this knowledge. According to Ghazālī, God’s knowledge is absolute and eternal; this knowledge reaches humans either through divine revelation or through intuition and inspiration. Thus, it is evident that Ghazālī’s understanding of mystical experience establishes a deep connection with divine revelation. His Sufi approach broadens the concept of divine revelation, emphasizing that divine knowledge is an accessible gateway for everyone. Ghazālī argues that this divine knowledge can be opened to individuals through
maʿrifah (gnosis or spiritual insight). By establishing a balance between the intellect and the heart, Ghazālī suggests that divine revelation is a source of knowledge that activates not only the intellectual capacity of humans but also their spiritual depths (
Ghazālī 1993, pp. 33–34).
Maʿrifah is a type of knowledge that enhances a person’s closeness to God in their spiritual journey. This perspective underscores the importance of spiritual purification in accessing divine truths and deepening one’s relationship with the divine (
Ghazālī 1993, pp. 1/33–34). This knowledge cannot be attained solely through theoretical reasoning; rather, one must reach the truths of God through spiritual experience and inner exploration. Ghazālī emphasizes that a genuine understanding of divine realities requires an active engagement with one’s spiritual journey, enabling individuals to experience and perceive the divine in a profound and meaningful way.
Al-Ghazālī, establishing a balance between the intellect and the heart, argues that both faculties offer different sources of knowledge to individuals. He posits that the intellect is a necessary tool for understanding the material and physical world; however, it is insufficient for attaining true knowledge. In contrast, the heart is an essential means for comprehending spiritual knowledge and divine truths. In Ghazālī’s works, the heart is viewed as the place through which a person can directly access the truths of God by undergoing profound spiritual experiences. This perspective highlights the complementary roles of both the intellect and the heart in the pursuit of holistic understanding and divine knowledge (
Ghazālī 1993, p. 4/234). According to Ghazālī, the purification and cleansing of the heart are essential conditions for the divine light to fill the human being. When the heart becomes pure, it becomes open to divine knowledge and can attain the truths of God through
maʿrifah. In this process, the intellect shifts from being merely a tool in the face of divine revelation to becoming a limited structure used to comprehend a part of the truth. This highlights the importance of spiritual purification in enhancing the heart’s capacity to receive and understand divine insights, thereby enabling a deeper connection with God (
Ghazālī 2004, s. 45;
Griffel 2009, s. 69).
In Ghazālī’s epistemology, the balance between the intellect and the heart forms his holistic understanding of knowledge (
Table 2). The intellect is employed to gather and analyze information about the world, while the heart provides access to higher, spiritual knowledge. According to Ghazālī, for an individual to truly know God and understand divine revelation, these two faculties must function in a balanced manner. The heart allows for direct access to divine knowledge, while the intellect is used to comprehend and evaluate the reflections of that knowledge in the material world. In Ghazālī’s epistemological approach, divine revelation is a source of knowledge that transcends reason, and for a person to access this knowledge, their heart must be purified through
maʿrifah. This highlights the importance of spiritual development in achieving a deeper understanding of divine truths (
Ghazālī 1993, p. 1/63). This approach lies at the core of Ghazālī’s Sufi thought, defining divine revelation as a truth that can be comprehended through both the intellect and the heart. He emphasizes that a holistic understanding of divine realities requires the integration of rational inquiry and spiritual insight, allowing individuals to grasp the multifaceted nature of divine revelation. In this way, Ghazālī underscores the importance of both faculties in the pursuit of spiritual knowledge and enlightenment.
7. Comparison of Ibn Sīnā and Al-Ghazālī
Ibn Sīnā and Ghazālī have approached the concept of divine revelation based on metaphysical foundations; however, there are significant differences between the two thinkers’ perspectives. While Ibn Sīnā explains divine revelation primarily within a philosophical framework as a metaphysical process, Ghazālī addresses it from both theological and Sufi dimensions, emphasizing mystical experience. For Ibn Sīnā, the Active Intellect serves as an intermediary. In his philosophical system, the Active Intellect serves as an intermediary that transmits knowledge from God to the human intellect. The Active Intellect conveys pure knowledge from God to the prophet’s mind, which the prophet receives as abstract concepts. In the process of divine revelation, the prophet’s imaginative faculty transforms these abstract concepts into concrete and sensory forms, enabling the prophet to communicate this knowledge to society.
This highlights how Ibn Sīnā views divine revelation as a structured intellectual process, while Ghazālī integrates a mystical understanding, suggesting that both rational and spiritual dimensions are essential for grasping the full essence of divine knowledge (
Davidson 1992, pp. 93, 316). Ibn Sīnā’s understanding of divine revelation is characterized by the idea that the human intellect reaches its highest level to receive the pure knowledge that comes from God. In this process, prophets establish a direct connection with the Active Intellect, gaining access to divine knowledge. This process is closely related to the development of the individual’s intellectual and cognitive capacities. Thus, divine revelation is a metaphysical manifestation of the ability of the human intellect to access knowledge from God. It highlights the interplay between intellectual advancement and the reception of divine truths, emphasizing the role of human faculties in the process of understanding divine revelation (
İbn Sinâ 2005, p. 7).
In Ghazālī’s understanding of divine revelation, it is regarded as a divine source of knowledge that transcends reason. He asserts that divine revelation is a truth accessible to humans through the purification of the heart and soul. Ghazālī approaches divine revelation from both a theological perspective and a mystical dimension. According to him, divine revelation is a manifestation of God’s attribute of speech (
kalām), representing the direct impartation of divine knowledge to the prophets. However, he contends that divine revelation is not solely a source of knowledge exclusive to prophets; rather, he argues that individuals can also approach divine truths through intuition, inspiration, and mystical unveiling (
kashf). This perspective highlights the accessibility of divine knowledge to all who pursue spiritual growth and understanding (
Frank 1994, p. 113). In Ghazālī’s Sufi understanding, the path to attaining divine knowledge does not solely pass through reason; the purification of the human heart and the attainment of spiritual depth are also essential. Ghazālī argues that individuals can reach the truth of God through
maʿrifah (gnosis or spiritual insight). This notion reflects the strong connection Ghazālī establishes between mystical experience and divine revelation, emphasizing that both play crucial roles in the pursuit of understanding divine realities. By highlighting the importance of the heart’s purification in conjunction with intellectual inquiry, Ghazālī illustrates how spiritual experiences can enhance one’s comprehension of divine truths. Both thinkers regard divine revelation as a source of divine knowledge. According to Ibn Sīnā, divine revelation is pure knowledge that comes from God, while for Ghazālī, divine revelation is a process of imparting information to prophets through God’s attribute of speech (
kalām). Both Ibn Sīnā and Ghazālī acknowledge that prophets are special individuals capable of receiving this divine knowledge. Ibn Sīnā emphasizes that prophets possess advanced intellectual and imaginative faculties, whereas Ghazālī asserts that they receive divine revelation due to their spiritual depths. This distinction highlights the differing emphases in their approaches to understanding the nature of prophecy and divine revelation.
The understandings of divine revelation by Ibn Sīnā and Ghazālī reflect significant metaphysical and epistemological differences. These distinctions in their approaches illustrate the diversity of theological and philosophical schools within Islamic thought. Both thinkers explain the effects of divine revelation on humans through different metaphysical and epistemological frameworks. Ibn Sīnā’s approach focuses more on intellect and cognitive processes, positing that divine revelation fosters intellectual development and enhances abstract thinking abilities. In contrast, Ghazālī emphasizes the spiritual growth and closeness to God facilitated by divine revelation. While Ibn Sīnā’s understanding of divine revelation is grounded in philosophical and metaphysical foundations, Ghazālī’s perspective is rooted in mystical and Sufi dimensions.
Moreover, the implications of their understandings of divine revelation diverge in terms of the human mental and spiritual structure. Ibn Sīnā views divine revelation as an attainment of the highest level of human intellect, whereas Ghazālī regards it as a means for spiritual development and a pathway to God. Ibn Sīnā highlights the effects of divine revelation on cognitive processes, while Ghazālī underscores its transformative impact on the spiritual structure of the individual. Together, the approaches of these two thinkers demonstrate how the concept of divine revelation is treated multifacetedly in Islamic thought. This situation reflects the philosophical and mystical nuances of their perspectives and showcases the diversity of epistemological approaches based on reason and intuition within Islamic scholarship.
The fundamental concept emphasized by both philosophers for understanding revelation is development. According to Ibn Sina, this is possible through cognitive development, whereas for Ghazali, it can be achieved through both cognitive and spiritual development. In developmental psychology, development is understood as multifaceted, encompassing physical, mental, moral, social, and emotional dimensions (
Shaffer 1996). Development is, therefore, a holistic process, meaning that it cannot be considered in isolated parts but rather as an intertwined spiral. A disproportionate development in one dimension while neglecting others is seen as limiting. In other words, if an individual develops mentally but fails to develop emotionally or spiritually, this limitation also hinders mental development. This demonstrates that development is multidimensional. Additionally, development is multi-layered. Across various developmental theories—whether cognitive development (
Piaget 1929), moral development (
Kohlberg 1971), or faith development (
Fowler 1988)—stages are always discussed within each framework. It is believed that understanding revelation is possible at the higher stages of multifaceted development. Although research on mystical experiences has rapidly expanded in fields such as psychology, philosophy, metaphysics, and neuroscience (
Ashbrook 1984;
Cunningham 2011;
James 1985;
Newberg 2018;
Steven 1978), it is still important to note that the available data remains limited. It must be acknowledged that the debates these two philosophers engaged in concerning this topic, given the era in which they lived, reflect an epistemological depth.