The original concepts psychological hurt and therapeutic catharsis are proposed as the basis for a revolutionary change in the theory and practice of psychotherapy. Psychological hurt, understood as any residual interference with psychological functioning from an adverse event(s), is proposed as the irreducible cause of any such difficulty. Therapeutic catharsis is proposed as the optimal healing process for psychological hurt. Such a transformational view of the theory and practice of psychotherapy is deemed as necessary because of the lack of unequivocal answers to the following fundamental questions: What causes psychological problems? What resolves them in the most optimal way?