Unlike Willy and Happy, Biff feels compelled to seek the truth about himself. While his father and brother are unable to accept the miserable reality of their respective lives, Biff acknowledges his failure and eventually manages to confront it. Even the difference between his name and theirs reflects this polarity: whereas Willy and Happy willfully and happily delude themselves, Biff bristles stiffly at self-deception. Biff’s discovery that Willy has a mistress strips him of his faith in Willy and Willy’s ambitions for him. Consequently, Willy sees Biff as an underachiever, while Biff sees himself as trapped in Willy’s grandiose fantasies. After his epiphany in Bill Oliver’s office, Biff determines to break through the lies surrounding the Loman family in order to come to realistic terms with his own life. Intent on revealing the simple and humble truth behind Willy’s fantasy, Biff longs for the territory (the symbolically free West) obscured by his father’s blind faith in a skewed, materialist version of the American Dream. Biff’s identity crisis is a function of his and his father’s disillusionment, which, in order to reclaim his identity, he must expose.