Weidig, Richard H. The Creative Advance: From History to Mystery. Berkeley: Berkeley West Publishing, 1987.

Abstract

The Mysterium subsumes Cosmos: the world to come is here already. There has been in operation another movement, beneath the historical process, that waits for the "right time" to include the literal world in its wake. History, personal and collective, is a preparation for inclusion within a larger movement: a meeting with the other side of full being, a meeting that will not just add to human potential, but multiply it: a leap that is beyond any attempt to completely imagine it. It is a movement from history to mystery.  - from the Prologue