Psychology seeks to understand the mind, its mental functions and its behaviors in individuals and groups through defined principles and research. Psychology's most important figure, Sigmund Freud, created three interacting concepts that occur seamlessly in everyday life: the id, the ego, and the superego. The id represents the needs and desires of the human unconscious. The Superego is the morality within which parental guidance that explains right and wrong and shows the ideal hovers in the conscious and unconscious mind. The ego is reality. Within George Bernard Shaw's play Major Barbara Andrew Under Shaft, a returning father and business tycoon, deals with a materialistic wife, Lady Britomart, and a moralistic religious daughter, Barbara. Through a bet both Under Shaft and Barbara agree to see the other's institution in hopes of changing their opponent's opinion, all while Lady Britomart tries to convince Under Shaft to inherit her son. While this family feud may seem like Shaw's questioning of religion versus capitalism, it can also be seen as a psychological examination. Throughout the play, Major Barbara, George Bernard Shaw psychologically analyzes the rich and their reasoning through the common motif of the mind using her character as reference points: Barbara as the superego, Under Shaft as the ego, and Lady Britomart as the id. Barbara's morality and beliefs put her at odds with her father who reconstructs the idea of ​​moralizing things done in reality. “The superego… is an agency that seeks to strengthen the aspiration to perfection, as it proposes ideal standards and moralistic objectives to the ego. Consequently, the superego is the “conscience” of the personality, and can take revenge on the ego's imperfections by inducing guilt” (Lapsey, Stey 6). His morality is the only reason for everything he does