Founded by Abraham Maslow, Stanislav Grof, and others in the late 1960s, transpersonal psychology extended humanistic psychology beyond self-actualization toward states and stages that ordinary egoic identity cannot contain.
It takes seriously Mystical Experience, peak-experience, flow, near-death experience, psychedelic experience, and the contemplative traditions’ cartographies of inner life — treating them as something to investigate rather than pathologize.
Its lineage runs back to william-james‘s Varieties of Religious Experience (1902) and forward through carl-jung, stanislav-grof, and ken-wilber‘s integral theory.