Postural Integration (PI) is an alternative process-oriented, body based therapy originally developed in the late 1960s by Jack Painter (1933-2010) in California, USA, after many years of self-exploration in the fields of humanistic psychology and the human potential movement.Erken, Rita and Schlage, Bernhard: Editors: Transformation of the Self with Bodymind Integration Postural Integration – Energetic Integration – Psychotherapeutic Postural Integration; Articles by 14 international authors; Hubert W.