A twenty-three-year-old Norwegian patient reacted by various defense mechanisms to a series of traumas. Regression of his ego became intense and this withdrawal resulted in an episode of schizophrenia. The patient ceased from all activities except taking care of his father's birds. He showed depersonalization and derealization, delusions of persecution, echolalia, and hallucinations. His homosexual libido became predominant. After he had made great symptomatic improvement, some of the patient's psychological mechanisms became clearly understandable.