At the heart of all these traditions is this pain of separation, the longing for reunion, and, occasionally, the transcendent achievement of it. But separation from what, exactly? From our soul mates, the location of whom is one of our great life tasks, the Platonic tradition suggests. From the womb, if you take a psychoanalytic view. From comfort in our own skin, usually because of some past hurt or trauma we’re struggling to heal.

