I think there's a shamanic temperament, which is a person who craves knowledge, knowledge in the Greek sense of gnosis. In other words, knowledge not of the sort where you subscribe to Scientific American, and it validates what you believe, but cosmologies constructed out of immediate experiences that are found to be always applicable.
Terence McKennaTo me, the psychedelic experience is the experience of trying to make sense of reality.
Terence McKennaThese things which are made of light and grammar and sound that come chirping and squealing and tumbling toward you. 'Hooray! Welcome! You're here!', and in my case, 'You send so many and you come so rarely!'
Terence McKennaOne reaches through to the continents and oceans of the imagination, worlds able to sustain anyone who will but play, and then lets the play deepen and deepen until it is a reality that few would even dare to entertain...The human imagination is the holographic organ of the human body, and we don't 'imagine' anything. We simply see things so far away that there is no possibility of validating or invalidating their existence.
Terence McKennaAnd what we're looking toward is a moment when the artificial language structures which bind us within the notion of ourselves are dissolved in the presence of the realization that we are a part of nature. And when that happens, the childhood of our species will pass away, and we will stand tremulously on the brink of really the first moment of coherent human civilization.
Terence McKenna