Title
An Analytical Study of Bodily Resurrection in the Isfahan and Tehran Philosophical Schools, with Emphasis on the Views of Mullā Ṣadrā and the Four Theologians

Abstract
The problem of bodily resurrection occupies a central place in the philosophical traditions of the Isfahan and Tehran schools. Employing an analytical–comparative method, this article examines the intellectual foundations of the major thinkers of these two schools—particularly Mullā Ṣadrā and the Four Theologians (Āqā ʿAlī Modarres Tehrānī, Mohammad-Reżā Qomshaei, Seyyed Abūl-Ḥasan Jelveh, and Mīrzā Ḥossein Sabzavārī)—with respect to the doctrine of bodily resurrection. The study aims to clarify the key points of divergence and convergence in their thought. Philosophers of the Isfahan school maintain that the resurrected body is shaped according to the individual’s identity and actions. Mullā Ṣadrā, in particular, argues that the material body lacks the capacity to persist in the Hereafter; after death, the soul is resurrected with its imaginal (mithālī) body. Conversely, the Four Theologians of the Tehran school contend that the soul imprints its effects upon the components of the material body, and these latent imprints gradually unfold into a perfected body in the afterlife. The findings indicate that although both schools affirm the significance of bodily resurrection, they differ substantially in emphasis and methodology. The Tehran school highlights the ethical implications of bodily resurrection for worldly life and adopts a synthesis of philosophical and theological approaches. In contrast, the Isfahan school, grounded in rational and metaphysical analysis, offers a more detailed account of the soul–body relationship.

Introduction
The doctrine of bodily resurrection (*ma'ad al-jismani*) stands as one of the most sensitive and challenging issues in Islamic philosophy. While the principle of the return of the soul along with the body on the Day of Judgment is agreed upon among Muslims, there is significant disagreement among theologians and philosophers regarding how this return is realized. Theologians emphasize the return of the same material body, whereas philosophers offer interpretations of the postmortem body grounded in their philosophical systems. Two major intellectual currents—the Isfahan School, centered on Mulla Sadra, and the Tehran School, represented by the Four Theologians (*Hukama' Arba'ah*)—have provided notably different explanations of this issue.
The Isfahan School emerged as one of the most distinguished intellectual movements in the history of Islamic philosophy in Iran, developing under the patronage of Shah Abbas I with the aim of integrating philosophy and religion. Spearheaded by Mir Damad and subsequently developed by Mulla Sadra, this school redefined rational philosophy in systematic connection with religious teachings, thereby revitalizing Islamic philosophy. Mulla Sadra, as the most influential philosopher of this school, introduced a revolution in explaining the relationship between the soul and the body and the possibility of bodily return after death through his theories of the primacy of existence (*asalat al-wujud*) and substantial motion (*al-harakat al-jawhariyyah*). While these innovations aimed to provide a rational explanation of bodily resurrection in line with religious beliefs, they also generated specific philosophical challenges.
The Tehran School, as the final stage of Islamic philosophy before the introduction of Western thought into Iran, emerged from a synthesis of Sadrian philosophy and theoretical mysticism. This school began with the establishment of the Marvi School in 1905, led by Mulla Abdollah Zonuzi, and was further developed by four prominent philosophers: Aqa 'Ali Modarres Tehrani, Mohammad Reza Qomshaei, Seyyed Abul-Hasan Jelveh, and Mirza Hossein Sabzavari. The Four Theologians, while building upon the foundations of the Isfahan School, introduced new concepts such as "psychic deposits" (*wada'i' nafsani*) to explain bodily resurrection, emphasizing the ethical implications of this doctrine for worldly life.
The central research question of this study is: What are the fundamental differences in the theoretical foundations of bodily resurrection between Mulla Sadra in the Isfahan School and the Four Theologians in the Tehran School? Sub-questions include: What are the key commonalities between the two schools in their goals for bodily resurrection (including the unity of reason and revelation)? How do the key concepts of "imaginal body" (*jism mithali*) in the Isfahan School and "psychic deposits" in the Tehran School differ in terms of the relationship between soul and matter? And which theory demonstrates greater philosophical coherence and explanatory power?

Research Methodology
This research employs an analytical-comparative method to investigate the intellectual foundations of bodily resurrection in the Isfahan and Tehran Schools. The study is qualitative in nature and relies on textual analysis of primary and secondary sources from both philosophical traditions. The primary sources include the works of Mulla Sadra, particularly his monumental *Asfar al-Arba'ah* (The Four Intellectual Journeys), as well as the writings and commentaries of the Four Theologians: Aqa 'Ali Modarres Tehrani, Mohammad Reza Qomshaei, Seyyed Abul-Hasan Jelveh, and Mirza Hossein Sabzavari. Secondary sources encompass scholarly studies, commentaries, and critical analyses on these philosophers.
The comparative analysis proceeds through several stages: first, a detailed exposition of each philosopher's position on bodily resurrection within their respective schools; second, an identification of the key concepts and principles underlying their theories, such as the primacy of existence, substantial motion, the imaginal body, and psychic deposits; third, a systematic comparison of the two schools' views to identify points of convergence and divergence; and fourth, an interpretive discussion of the strengths and weaknesses of each approach. The methodology is hermeneutical and comparative, seeking to understand each thinker's position within their own philosophical system before engaging in cross-comparison. The analysis is structured around key themes: the nature of the soul-body relationship, the concept of the postmortem body, the role of substantial motion and the imaginative faculty, the preservation of personal identity, and the ethical implications of resurrection. The study also includes a comprehensive table comparing Mulla Sadra's views with those of the Four Theologians across multiple dimensions.

Discussion
The Isfahan School: The Imaginal Body and the Unity of Existence
The Isfahan School's approach to bodily resurrection is grounded in a comprehensive ontological framework that distinguishes three levels of being corresponding to the three modes of human cognition: the sensible world, the imaginal world, and the intellectual world. Mulla Sadra, building upon this framework and introducing the principle of substantial motion, argued that the postmortem body is not the return of the material body but the emergence of an imaginal body (*jism mithali*) that is the manifestation of the soul itself. This body is the product of the creative power of the imaginative faculty, which, based on the soul's actions and acquired dispositions (*malakat*) during earthly life, shapes a body appropriate for the afterlife.
The key principles underlying Mulla Sadra's theory include the primacy of existence, the graded unity of existence (*tashkik al-wujud*), the substantial motion of the soul, the immateriality of the imaginative faculty, and the unity of the intellect, the intellector, and the intelligible (*ittihad al-'aql wa al-'aqil wa al-ma'qul*). Through these principles, Mulla Sadra was able to provide a rational explanation of bodily resurrection that avoided the problems faced by earlier philosophers, such as the problem of the dispersion of bodily parts and the problem of the creation of a new body. The imaginal body is not a new creation from nothing but a manifestation of the soul's own essence and its acquired dispositions. It is similar to the earthly body but not identical to it; it possesses material-like characteristics such as shape and quantity but is not composed of material elements.
Mulla Sadra's theory of substantial motion is particularly crucial for his account of bodily resurrection. According to this theory, the soul undergoes continuous transformation throughout its existence, moving from potentiality to actuality and from deficiency to perfection. This transformation is not merely accidental but essential; the soul's very substance changes and develops. The imaginal body is the final stage of this transformation, the manifestation of the soul's completed essence. In the afterlife, the soul does not need a material body because it has, through its substantial motion, achieved a level of immateriality that transcends material existence. The imaginal body serves as a vehicle for the soul's experience of reward or punishment, enabling the soul to experience pain and pleasure in a manner appropriate to its ontological level.
Other philosophers of the Isfahan School offered variations on this theme. Shaykh Baha'i, one of the founders of the school, accepted the idea of the imaginal body but without a systematic philosophical foundation, resulting in a certain lack of coherence. Mir Damad, emphasizing the primacy of essence (*asalat al-mahiyyah*), insisted on the preservation of the body's identity and essence in the afterlife, leading to a tension with the more existential approach of Mulla Sadra. Mulla Rajab Ali Tabrizi, rejecting both the primacy of existence and substantial motion, offered a theory based on the recreation of the body according to its essence. Despite these variations, the Isfahan School as a whole affirmed the reality of bodily resurrection and sought to provide a rational account of its possibility.
The Tehran School: The Four Theologians and the Concept of Psychic Deposits
The Tehran School, represented by the Four Theologians, continued the Sadrian tradition but introduced new concepts and emphases. Aqa 'Ali Modarres Tehrani, considered the founder of the school, developed the innovative concept of "psychic deposits" (*wada'i' nafsani*). According to his theory, the soul, after death, leaves deposits or vestiges in the particles of the material body. These deposits, which are the effects of the soul's actions and dispositions, cause a substantial motion and existential transformation in the particles of the body, preparing them for reunion with the soul in the afterlife. Modarres emphasized that the relationship between the soul and the body is an intrinsic relationship (*ittihad dhati*) that is not severed by death. The soul remains the efficient cause of the body, and after death, the body, through the transformation of its particles, reaches a level of existence appropriate for reattachment to the soul.
Modarres's theory differs from Mulla Sadra's in several key respects. First, Modarres insists on the continuity of the material body, albeit in a transformed state, rather than the creation of a new imaginal body. Second, Modarres emphasizes the active role of the body in the resurrection process—the body moves toward the soul, rather than the soul creating a new body. Third, Modarres's theory seeks to preserve the materiality of the resurrected body, maintaining a closer connection to the literal sense of religious texts on bodily resurrection. However, Modarres's theory faces significant challenges. If the body's particles undergo substantial motion to reach the level of immateriality, they cease to be material and become imaginal bodies, which is precisely what Modarres sought to avoid. If they remain material, they cannot achieve the level of existence required for reattachment to the soul. This tension indicates a fundamental instability in Modarres's position.
The other Three Theologians offered different perspectives. Mohammad Reza Qomshaei emphasized the mystical and ethical dimensions of bodily resurrection, viewing it as the manifestation of the soul's true essence and a practical guide for ethical life. He argued that belief in bodily resurrection should serve as a motivating force for moral behavior, transforming the doctrine from a metaphysical abstraction into a practical principle. Seyyed Abul-Hasan Jelveh, in contrast, adopted a critical stance toward Mulla Sadra's theory of substantial motion, raising objections rooted in Peripatetic philosophy. He questioned the coherence of substantial motion and the preservation of personal identity through continuous change. Mirza Hossein Sabzavari, the fourth theologian, emphasized the jurisprudential and social dimensions of bodily resurrection, viewing it as a factor for individual and social transformation rather than a purely rational explanation.
Comparative Analysis: Two Approaches to Bodily Resurrection
A comparative analysis of the Isfahan and Tehran Schools reveals both significant similarities and important divergences. In terms of similarities, both schools affirm the importance of bodily resurrection as a central doctrine of Islam, recognize the continuity of personal identity in the afterlife, and seek to provide a rational account of the resurrection process. Both schools also acknowledge the role of the soul's actions and dispositions in shaping the quality of postmortem existence, and both are committed to the unity of reason and revelation.
The primary difference between the two schools lies in their approach to the relationship between the soul and the body. The Isfahan School, particularly Mulla Sadra, emphasizes the ontological dimension of this relationship. The body is seen as a manifestation of the soul, and the imaginal body of the afterlife is a direct expression of the soul's essence. The relationship is internal and existential. In contrast, the Tehran School, particularly Modarres, emphasizes the active role of the body and the continuity of material existence. The body, through its transformation and its psychic deposits, maintains a connection to the soul and eventually reunites with it. The relationship is more external and causal.
Another significant difference concerns the nature of the postmortem body. In Mulla Sadra's view, the imaginal body is not material but has material-like characteristics; it is a product of the soul's imaginative faculty and is appropriate for the imaginal realm. In Modarres's view, the resurrected body is a transformed material body, composed of the same particles that constituted the earthly body but elevated to a higher level of existence. This difference reflects a deeper philosophical divide. Mulla Sadra's view is grounded in the primacy of existence and the graded unity of being, where all levels of existence are seen as interconnected stages of a single reality. Modarres's view, while influenced by Sadrian philosophy, maintains a greater concern for the preservation of materiality and the literal sense of religious texts.
A third difference concerns the role of the imaginative faculty. For Mulla Sadra, the imaginative faculty is a creative power capable of generating real entities, including the imaginal body. This faculty is the link between the material and intellectual worlds and plays a central role in the postmortem experience. For the Four Theologians, the imaginative faculty is less emphasized; the focus is on the transformation of material elements and their reattachment to the soul.
Strengths and Weaknesses: Evaluating the Two Theories
Mulla Sadra's theory of bodily resurrection demonstrates greater philosophical coherence and explanatory power than the theories of the Four Theologians. This is due to several factors. First, the theory is grounded in a comprehensive ontological framework that provides a clear account of the relationship between the soul and the body, the nature of the afterlife, and the process of resurrection. Second, the theory avoids the problem of the dispersion of bodily parts by positing an imaginal body that is a manifestation of the soul rather than a reconstruction of material elements. Third, the theory explains the preservation of personal identity through the continuity of the soul and its acquired dispositions, not through the identity of material particles. Fourth, the theory accounts for the qualitative differences between earthly and heavenly existence by situating the resurrected body in a different ontological realm.
The Four Theologians' theories, while valuable contributions, face several challenges. Modarres's concept of psychic deposits, while innovative, leads to unresolved tensions regarding the nature of the body's transformation and the possibility of reattachment to the soul. The lack of a clear account of how the body's particles transform and how this transformation relates to the soul's nature undermines the theory's coherence. Jelveh's criticisms of substantial motion, while raising important points, are rooted in a different philosophical framework (Peripatetic philosophy) that does not fully appreciate the existential dimensions of Mulla Sadra's thought. Qomshaei and Sabzavari, while offering important ethical and practical insights, do not provide the same level of philosophical precision as Mulla Sadra.

Conclusion
This comparative study of bodily resurrection in the Isfahan and Tehran Schools reveals two distinct approaches to a central doctrine of Islamic philosophy. The Isfahan School, represented by Mulla Sadra, offers a comprehensive ontological explanation grounded in the principles of the primacy of existence, substantial motion, and the creative power of the imaginative faculty. The body of the afterlife is an imaginal body that is the manifestation of the soul itself, enabling the soul to experience reward and punishment without the need for a material body. This theory demonstrates strong philosophical coherence and successfully addresses the challenges of bodily resurrection.
The Tehran School, represented by the Four Theologians, while building upon Sadrian philosophy, introduces new concepts and emphases that reflect a greater concern for the preservation of materiality and the ethical dimensions of resurrection. The concept of psychic deposits, the emphasis on the body's transformation, and the focus on the practical implications of resurrection for worldly life are all significant contributions. However, these theories face challenges related to their internal coherence and their ability to provide a fully satisfying rational account of the resurrection process.
The study's findings indicate that Mulla Sadra's theory, due to its grounding in a comprehensive and systematic philosophical framework, provides a more coherent and powerful explanation of bodily resurrection. The Four Theologians' theories, while valuable, are less successful in resolving the philosophical challenges posed by the doctrine. This conclusion suggests that the integration of existential and ontological principles, as achieved by Mulla Sadra, is essential for a philosophically robust account of bodily resurrection. The study also highlights the importance of considering the ethical and practical implications of the doctrine, as emphasized by the Tehran School, for the overall understanding of its significance. Future research could further explore the reception of these theories in later Islamic philosophy and their relevance to contemporary discussions of personal identity and the afterlife.