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.
Terence McKennaSince the very beginning of culture, what we seem to be are animals which take in raw material and excrete it imprinted with ideas.
Terence McKennaCulture is more and more consciously becoming a project carried out in the domain of language by, for instance, propaganda both governmental and commercial.
Terence McKennaThe psychedelic viewpoint is becoming more and more legitimate, but psychedelic drugs are not. That's the odd paradox of it.
Terence McKennaMarcel Eliade took the position that hallucinogenic shamanism was decadent, and Gordon Wasson, very rightly I believe, contravened this view and held that actually it was very probably the presence of the hallucinogenic drug experience in the life of early man that lay the very basis for the idea of the spirit.
Terence McKenna