Book excerpt: This book introduces the concept of the "Person One Could Have Become" and shows the importance of mourning for individuals with all sorts of traumatic experiences (abuse, neglect, or pregnancy loss). Presented here are philosophical tenets (existential-humanistic) as well as the clinical applications (integrative group psychotherapy). The role of the psychotherapist and appropriate supervision is emphasized. The book utilizes examples of traumatized individuals who struggle during psychotherapy.