The document discusses Aristotle's theory of tragedy from his work Poetics. It outlines the six key aspects of Greek tragedy according to Aristotle: catharsis, hamartia, universality, artful diction, unity of action, and spectacle. For each aspect, the document provides explanations and examples from Greek tragedies like Oedipus Rex to illustrate Aristotle's concepts. It also discusses how these tragic elements can be connected to elements of contemporary culture.