Work on the show "Kisik (Oxygen)" is the title of graduate work written by Ivana Vukićević under the mentorship of prof. art. Robert Raponja at the Academy of Arts in Osijek, at the Department of Theater Art, acting and puppetry. The work is based on the theater performance of " Kisik (Oxygen)" of the Russian dramatic author Ivan Viripaev. In that performance also participated artistic associate Nenad Pavlović. This graduation work describes the process of working on the play, as well as the finding of role-playing materials. This work introduces us to the biography of the author of the dramatic text, then tells us more about the text itself. Greater focus emphasizes the work on the text itself and the creation of a unit in the space of these mental processes that took place during the graduation exam. Apart from the external elements, the text also deals with internal actors processes and tries to figure out the ways in which all-action tools are used, and most importantly, that a breath and breathing can give a truly sparked role. At the very end, the author of the graduate thesis,Ivana Vukićević, comes to the conclusion that breathing, truth and sincerity are the keys to create the cathartic synergy that the theater strives.