Thomas Mann's novel Doctor Faustus is a multi-layered work that elicits different, often conflicting and contradictory reflections, analysis and interpretation. In the novel are thematised many literary, social, historical, philosophical, musical theory and aesthetic problems. In this paper we focus on the questions of aesthetic potentiality modelled of literary event, to possible ways of perception and understanding of the literary text, its potential relationship to the real facts past and present. As a methodological basis we will use the philosophical and aesthetic concept of N. Goodman and by him explained the essence of making metaphors, "image as", exemplification and making of aesthetic semiosis. We will point out the difficulty of comparing literary text with the real reality (past and present), the problem of "mythical" and "demythical" potential of literary text in relation to the problem of art, artist, art, art perceiver.