Belief is a toxic and dangerous attitude toward reality. After all, if it's there it doesn't require your belief- and if it's not there why should you believe in it?
No culture on earth is as heavily narcotized as the industrial West in terms of being inured to the consequences of maladaptive behavior. We pursue a business-as-usual attitude in a surreal atmosphere of mounting crises and irreconcilable contradictions.
One way to think about what psychedelics are is as catalysts for language development. They literally force the evolution of language. You cannot evolve faster than your language because the language defines the culture of meaning. So if there's a way to accelerate the evolution of language then this is real consciousness expansion and it's a permanent thing. The great legacies of the 60's are in attitudes and language. It boils down to doing your own thing, feeling the vibe, ego-trip, blowing your mind.
And what is shamanism but philosophy with a hands-on attitude. Philosophy not made around the camp fire, but philosophy based on the acquisition of extreme experience. That's how you figure out what the world is, not by bicycling around in the burbs, but by forcing extreme experience.
What I always hoped for out of the psychedelic voyaging was to bring back something. I always felt, and still feel, that that is the attitude with which you should go into these things.
This is a very central part of the psychedelic attitude toward the world, to entertain all possibilities but to never commit to belief. Belief always being seen as a kind of trap, because if you belief something you are forever precluded from believing its opposite.
It's my belief that one of the unconscious reasons which underlies the odd attitude of the establishment toward hallucinogens is the fact that they bring the mystery to the surface as an individual experience. In other words, you do not understand the psychedelic experience by getting a report from Time magazine or even the Economist. You only understand the psychedelic experience by having it.