The Expansion of Existence's Truth in Theoretical Mysticism and Its Consequences

There is a little doubt that we can consider the personal unity theory of existence as the most influential theory in theoretical mysticism, mystical literature, and Molla Sadra’s Philosophy. By focusing on mystical intuition, the perspective of the existence world is explained by that approach as the single truth that manifests itself in various and manifold specifications and forms. The acceptance and realization of this view, by human reason that has become aware of them and recognized them from each other through an analytic demarcation, seems impossible. Pantheism’s (transcendence unity of being) point of view is apprehensible and acceptable provided there is clear explanation of the expansion process of the single truth, so that both plurality and unity are focused in this explanation. This paper reread such a process at first, then introduces some center concepts, and considers some ontological and epistemological results at the end.