I have never felt that the primary use of these things was to cure what is called in modern parlance neurosis, what I call unhappiness. It isn't for that.

The intellectual tension that seems to work its way through this society almost like fat through meat is the tension between scientific reductionism and the deeply felt intuition of most people that there is a spiritual dimension, or a hidden dimension, or a transcendental dimension.

As a society we cannot seem to make peace with nature. As individuals, it's hard for us to be at peace with ourselves.

I'm not an advocate for everything that rolls out of the laboratory. I'm an advocate for things sanctioned by millennia of usage.

The world which we perceive is a tiny fraction of the world which we can perceive, which is a tiny fraction of the perceivable world.

Apparently, in the Avesta classical period no one would have dreamed of having a spiritual experience without resort to drugs.

At still higher doses psilocybin triggers this activity in the language-forming capacity of the brain that manifests as song and vision. Psilocybin may have synergized the emergence of higher forms of psychic organization out of primitive protohuman animals. It can be seen as a kind of evolutionary enzyme, or evolutionary catalyst.