At the heart of Arthur Miller's play “Death of a Salesman” is the idea of ​​a classic yet modern tragedy of a stereotypical class family average. This family struggles to struggle in a country run on the basis of capitalism. Psychological and psychoanalytic criticism investigates the text by observing the mental or emotional state of the brain and the interaction of conscious and unconscious elements through methods such as daydreaming and free association. The psychology behind the American Dream is based on the ideology of being successful no matter who you are; it is, after all, the land of opportunity. With this mentality, Willy throws himself and his family into a trap. Willy never dares to perceive anything other than the misunderstanding of the American dream he has in mind, living a fictitious life without any realistic end goal. On the other hand, through all the ups and downs; Biff realizes that his life has been a fantasy and that he must pursue his true dream, the one that makes him happy. Ergo, conscious or unconscious, the brain is powerful, very powerful, it has the ability to change the destiny of any individual. The benchmark Willy sets as success: materialism, if it is well known or loved, leads him to live a life of false impressions and a tragic death. Willy Loman, the central character, appears in Howard Wagner's office in act 2 and asks the question "is there anything better than being a salesman?" He smiles “Because what could be more satisfying than to be able to go, at the age of eighty-four” at the age of eighty-four he said “to twenty or thirty different cities, pick up a telephone and be loved and remembered by so many different people? ” Willy can't see the true meaning of life: happiness and satisfaction... middle of paper... that he lost his whole life in that path. The psychology behind “Death of a Salesman” is based on the idea that Willy believes in and relies heavily on the American dream as fuel to achieve his goals; This ideology stifled Will's dream of success, but it was a lesson for his son to build on. Using psychological and psychoanalytic tools it is possible to investigate the text by observing the mental or emotional state of the brain and the interaction between conscious and unconscious elements through methods such as daydreaming and free association. “Death of a Salesman” explores the theme of failure within a success-oriented society which has great significance in today's contemporary society. Willy Lowman is accepted as a terrible figure of failure, due to society's false value system and Willy's inability to face life with integrity.