Early contributions to the field of transpersonal psychotherapy includes the approach of Walsh & Vaughan. In their outline of transpersonal therapy they emphasize that the goals of therapy includes both traditional outcomes, such as symptom relief and behaviour change, as well as work at the transpersonal level, which may transcend psychodynamic issues. Both Karma Yoga and altered states of consciousness are part of the transpersonal approach to therapy. According to Walsh & Vaughan the context of karma yoga, and service, should also facilitate a process whereby the psychological growth of the therapist could provide supporting environment for the growth of the client.