In my master's thesis, I deal with the topic of sensitivity, as the main function of a human being, on the one hand as a cause, and on the other as a consequence of interaction with the environment. The framework for this research is the question of real world perception, the impact of real world action on the inner world, and the consequences of reactions to the real world. The main idea is to connect and reconcile these concepts and to show their mutual relationship, with the aim of bringing closer the understanding of reality and everyday life of a sensitive person. As a result of theoretical and artistic research, a work of art is created, the installation "f (x) = sensitivity", which invites the audience to participate in a performative way in the recreation of feelings of sensitivity.