In this article I would like to present three main areas of my interest in the aesthetics of Georg F. W. Hegel which are associated, directly or indirectly, with the philosophical tradition of the metaphysics of light. First, I will introduce my interpretation of the concept, used by Hegel, of luminosity in art (here I present my own understanding of this phenomenon, as I refer it to all of the three types of art we can speak of within the framework of Lectures on Aesthetics; meanwhile, the traditional approach has been to apply this concept exclusively to romantic art, which, while correct, is only justified by the examination of art as a whole). Thus I propose here to examine the phenomenon of the luminosity of truth in symbolic, classical and romantic art.