Metaphysics of Light in the Thought of Saint Bonaventure

The purpose of this study is to investigate the place of metaphysics of light in the thought of Saint Bonaventure. Bonaventure is one of the mystical philosophers of the thirteenth century who had many influences on later thinkers. How man achieves fixed and common truths is a fundamental issue that Saint Bonaventure has faced in epistemological discussions. He uses the theory of light to explain this issue. In this article, while proposing different views and approaches to Bonaventure's theory of light, an attempt has been made to examine issues related to the metaphysics of light. The results show that Saint Bonaventure uses light as an analogy to communicate with God and enjoy Him in life. A God-centered view that seeks to reconcile the philosophical search for truth with the ultimate truth of Christian revelation. Despite his influence on Aristotle's thought in the form of the physics of light, in the general synthesis of his thought, the use of Neoplatonic and Augustine's ideas and the metaphysics of light is evident. "Lux" and "lumen" are terms used by Bonaventure to describe the metaphysics of light. In his metaphysical thought, light is the most original form on which all other forms depend, and whatever it is, it is formed through the basic form of light.