Abstract
This paper tries to argue the thesis that the painting Las Meninas by Diego Velázquez contains a reflection about art, which deals in the medium of painting with three of the most important problems of aesthetics: the problem of the artist, the artwork and its reception. In order to prove this thesis, the paper analyses the picture with the assumption that Velázquez worked in front of a mirror. Furthermore, the aesthetic problems detected in the painting are developed in terms of a philosophy of art, concluding with the question of how mirroring can be considered a model for the structure of the artwork in general.