The main aim of this paper is to propose an adequate interpretation of the concept esse apparens (apparent being) which was used by Franciscan philosopher and theologian Peter Auriol (c. 1280-1322), especially focusing on his account of sensory perception. Drawing on an analysis of the relevant passages of the commentary on the Sentences by Auriol, first, I introduce his famous account of sensory illusions, and then his own claims about the nature of esse appparens (Auriol refuses to treat it either as a separate entity serving as a mediator of perception, or as only an extrinsic denomination of the perceived object). In the next part, I reject the interpretation which identifies esse apparens with mental representation. In my opinion, it is more appropriate to place this concept into the context of scholastic doctrine of objectiver or intentional being (popularized mainly by Duns Scotus and his disciples). At the end of the paper, I return to Auriol's account of illusions and show that it is compatible with esse apparens being understood as mode of being., Lukáš Lička., and Obsahuje poznámky a bibliografii