“Mescalin opens up the way of Mary, but shuts the door on that of Martha.”

“I am not so foolish as to equate what happens under the influence of mescalin or of any other drug, prepared or in the future preparable, with the realization of the end and ultimate purpose of human life: Enlightenment, the Beatific Vision. All I am suggesting is that the mescalin experience is what Catholic theologians call "a gratuitous grace," not necessary to salvation but potentially helpful and to be accepted thankfully, if made available. To be shaken out of the ruts of ordinary perception, to be shown for a few timeless hours the outer and the inner world, not as they appear to an animal obsessed with survival or to a human being obsessed with words and notions, but as they are apprehended, directly and unconditionally, by Mind at Large—this is an experience of inestimable value to everyone and especially to the intellectual.”

“Embryos are like photograph film," said Mr. Foster waggishly, as he pushed open the second door. "They can only stand red light." And in effect the sultry darkness into which the students now followed him was visible and crimson, like the darkness of closed eyes on a summer's afternoon.”

“The really important facts were that spatial relationships had ceased to matter very much and that my mind was perceiving the world in terms of other than spatial categories. At ordinary times the eye concerns itself with such problems as where? — how far? — how situated in relation to what? In the mescaline experience the implied questions to which the eye responds are of another order. Place and distance cease to be of much interest. The mind does its perceiving in terms of intensity of existence, profundity of significance, relationships within a pattern.”

“There are things known and there are things unknown, and in between are the doors of perception.”

“I fell,” he repeated for the hundredth time. “But you didn’t fall very far,” Mary Sarojini now said. “No, I didn’t fall very far,” he agreed. “So what’s all the fuss about?” the child inquired.”

“Words, words, words! They shut one off from the universe. Three quarters of the time one’s never in contact with things, only with the beastly words that stand for them.”