While the heliocentrism of occidental traditional philosophy primarily regards shadow as a lack of light due to its emphasis of relationship between light and form, the importance and the meaning of shadow is in turn concealed. In this context, inquiring how Antonin Artaud talks about the theatre and its double from the shadow has become the focus of this article. What kind of theatre implications does Artaud develop? What may be involved will not only be a clarification of the meaning of theatre, but also will be an inquiry into the meaning of metaphysics. This paper explores the meaning of theatre and "space" through corporality and sound in an attempt to manifest the meaning of "evil" and "theatre of cruelty" in Artaud's thought, apart from the neo-Platonic view of good and evil. Therefore, this paper attempts to highlight the relationship of art, life and the theatre.