In the absence of good scientific data about the effects of artificial hallucinogens it's good to stick to the natural ones.
Terence McKennaWhat we call three dimensional space, and what we call the imagination actually have a contiguous and continuous transformation from one into the other, ... and THIS is big news!
Terence McKennaWe can no longer have forbidden areas of the human mind, or cultural machinery. We have taken upon ourselves the acquisition of so much power that we now must understand what we are. We cannot travel much further with the definitions of man that we inherit from the Judeo-Christian tradition. We need to truly explore the problem of consciousness.
Terence McKenna