by John E. Mack, M.D.
Editor’s Note: This article was originally presented at the International Transpersonal Association Conference on “Science, Spirituality, and the Global Crisis: Toward a World with a Future,” which was held in Prague, Czechoslovakia. It was delivered on 25 June 1992. It was subsequently published in Primal Renaissance: The Journal of Primal Psychology, Vol. 1, No. 1, Spring 1995, 96-110.