In 1944 the psychiatrist and pioneer of transpersonal psychology Carl G. Jung had a heart attack, which led to an exceptionally vivid near-death experience, recalling which he said: “It seemed to me as if behind the horizon of the cosmos a three dimensional world had been artificially built up, in which each person sat by himself in a little box. . . . I had been so glad to shed it all, and now it had come about that I—along with everyone else—would again be hung up in a box by a thread. ”