According to Freud, the id is the part of the unconscious that contains the most dangerous parts of the human psyche. It is the domain of unrestrained lust, anger, hate and of course innumerable sexual desires, all of which need to be repressed. However, when a person cannot or does not repress parts of their id, tragedy is inevitable, as the person will destroy either themselves, people around them or both.
Few works provide a clearer example of this than Sophocles’ Antigone. The characters in Antigone are largely driven by their instinctual drives of kinship, anger, and most of all pride. These characters lack rational control over themselves, and are increasingly unable to reign in their large and stubborn egos (in the colloquial sense of the term), which leads first to chaos and confusion, and ultimately to their downfall.