Abstract
The lumen naturale plays an important role in the philosophy of Descartes, particularly in the Meditations. Yet, while its analysis has not been completely neglected, the lumen naturale has hardly received the philosophical examination it deserves. While it is not possible in so short a paper to entirely remedy this deficiency, I do hope in this article to provide some insights into Descartes’ understanding of this concept. In this light, I will seek to examine Descartes’ understanding of the lumen naturale in terms of how it functions and its object(s) in order to understand what, if anything, the lumen naturale tells us about the world around us.