Apparently, in the Avesta classical period no one would have dreamed of having a spiritual experience without resort to drugs.
Terence McKennaBut a mature humanity could get into a place where we no longer required these metaphysical spankings from messiahs and flying saucers that come along every thousand years or so to mess up the mess that has been created and try and send people off on another tack. And the way to do this is to look at the abysses that confront man as species and individuals and try to unify them. And I think that psilocybin offers a way out because it allows a dialogue with the over-mind. You won't read about it in "Scientific American" or anywhere else. You will carry it out.
Terence McKennaWhat history is, essentially, is a careening, out-of-control effort to find our way back to this state of primordial balance.
Terence McKenna