This study requires an explanation of the „great friendship” between Brook and Grotowski renowned directors based on their complementarity vision about theater and about the world. Brook’s theater wants to be just as dramatic action circle that promotes concentration. The Grotowski has become a passion for fluidity, the supreme expression of life. Brook seek organic unity of life, a high level incandescent, while Grotowski remove the theater, trying to find the „actions” river its mobility. Influenced by the circle symbol or River, Brook and Grotowski were obtained, therefore, a „theater of unity”.