Freud rarely treated psychotic patients or psychoanalyzed people just from their writings, but he had a powerful and imaginative understanding of their condition—revealed, most notably, in this analysis of a remarkable memoir. In 1903, Judge Daniel Schreber, a highly intelligent and cultured man, produced a vivid account of his nervous illness dominated by the desire to become a woman, terrifying delusions about his doctor, and a belief in his own special relationship with God. Eight years later, Freud's penetrating insight uncovered the impulses and feelings Schreber had about his father, which underlay his extravagant symptoms.