Id: The id is an aspect of Freud's psychoanalytic theory that represents our primitive instincts and operates on the pleasure principle.
Ego: The ego is another aspect of Freud's theory that acts as a mediator between the id and superego, balancing instinctual drives with societal expectations.
Defense Mechanisms: Defense mechanisms are psychological strategies used by individuals to protect themselves from anxiety by distorting reality or denying certain thoughts or feelings.