Seth: History, as you know it, represents but one single light upon which you focus

 "History, as you know it, represents but one single light upon which you focus. You interpret the events that you see therein, and you project upon its glimmer your interpretation of events that may occur. So entranced is your concentration, that when you wonder about the nature of reality you automatically confine your question to this one small flickering moment that you call physical reality. When you ponder upon the aspects of God, you unthinkingly speak of the creator of that one light. That light is unique, and if you truly understood what it was, you would indeed understand the nature of true reality.

History, as you think of it, represents but one thin line of probabilities, in which you are presently immersed. It does not represent the entire lifetime of your species or the catalogue of physical activities, or begin to tell the story of physical creatures, their civilizations, wars, joys, technologies, or triumphs. Reality is far more diverse, far richer and unutterable than you can presently suppose or comprehend. Evolution, as you think of it and as it is categorized by your scientists, represents but one probable line of evolution, the one in which, again, you are presently immersed."

There are, therefore, many other equally valid, equally real evolutionary developments that have occurred and are occurring and will occur, all within other probable systems of physical reality.  The diverse, endless possibilities of development possible could never appear within one slender framework of reality.

—SS Part Two: Chapter 14: Session 559, November 9, 1970