Transpersonal psychotherapy proposes a series of systematic diagnoses and treatments in the integration of spiritual psychology. This study aims to analyze the treatment cases of John Welwood and Seymoor Boorstein, who are renowned transpersonal psychotherapists, to identify the specific treatments they used in their treatment cases with clients/patients and to reveal common diagnostic assessment methods and treatment methods of transpersonal psychotherapy.
The results of the study showed that Welwood and Boorstein’s transpersonal psychotherapy commonly applied the assessment methods of existing psychotherapy and used meditation as the main transpersonal psychotherapy technique. However, the two psychotherapists had different opinions on spiritual practice and growth. While Welwood carefully examined spiritual detours, Boorstein actively used spiritual practice as a tool to resolve psychological disorders. Welwood warned of the damage that transpersonal therapy can cause by introducing a method to deal with spiritual detours. Boorstein is positive about meditation groups, but Wellwood warns against the reinforcement of defenses that meditation groups can provide to clients. This study can be used as a resource to provide specific methods and treatment principles of transpersonal psychotherapy in a reality where there is a lack of specific and detailed theoretical explanations for the assessment and treatment of transpersonal psychotherapy.