The paper considers the problem of determining the specific feature of aesthetic principle on the level of reflexive thinking in terms of ontological problem of authentic and inauthentic existence.The study is aimed at detection of singularity of thinking subject aesthetic nature and peculiarity of aesthetic interlocutory relations on the level of reflexive cogitations as a certain sort of events revealing ontological sense of personal principles.It was shown that implementation of the ontological a pea in the pod nursing bra project of personality self-fulfillment on the reflexive level of existence starts as a process of mastering the art of aesthetic forming and processing of the thought; incomprehensibility of climb to metaphysical horizon of the Beauty and the Sublime is supported.
The author made a conclusion on the efficiency of viewpoints confirming ontological significance of aesthetic principle considered as a source and a special form of essie win me over developing thought required for understanding deep processes of personality existential self-fulfillment.