“These predicates are only negatively conceivable, and are approached only by abstracting from all positive predicates. Dionysius states that God’s being is ‘presubstantial’ and absolutely unattainable for man. Thus an ironic situation presents itself, in which the worshipper must praise without being able to do so, must shout without knowing what to shout, and must speak without a voice. In this text, the pious dilemma does not end in mystical silence but in the acknowledgement that every act of naming is ambiguous.”

Gershom Scholem on divine predicates and Dionysius the Areopagite.

"I assume that the reader is familiar with the idea of extra-sensory perception, and the meaning of the four items of it, viz. telepathy, clairvoyance, precognition and psycho-kinesis. These disturbing phenomena seem to deny all our usual scientific ideas. How we should like to discredit them! Unfortunately the statistical evidence, at least for telepathy, is overwhelming. It is very difficult to rearrange one’s ideas so as to fit these new facts in. Once one has accepted them it does not seem a very big step to believe in ghosts and bogies. The idea that our bodies move simply according to the known laws of physics, together with some others not yet discovered but somewhat similar, would be one of the first to go. [...] With E.S.P. anything may happen."

Alan Turing on E.S.P. « Computing Machinery and Intelligence », Mind, 1950

"Apparently that kind of ordering which is the most irrepressible among the artistic powers, is awakened most urgently by two different inner states: by the consciousness of overabundance and by the full collapse in a person: which gives rise to yet another overabundance."

Rainer Maria Rilke on Adolf Wölfli, after the case study by the doctor Morgenthaler.

"The visions were not blurred or uncertain. They were sharply focused, the lines and colours being so sharp that they seemed more real to me than anything I had ever seen with my own eyes. I felt that I was now seeing plain, whereas ordinary vision gives us an imperfect view; I was seeing the archetypes, the Plantonic ideas, that underlie the imperfect images of everyday life.
.. for the effect of the mushrooms is to bring about a fissure of the spirit, a split in the person, a kind of schizophrenia, with the rational side continuing to reason and to observe the sensations that the other side is enjoying. The mind is attached as by an elastic cord to the vagrant senses."

R. Gordon Wasson, on his second mushroom experience in Mexico, (Seeking the Magic Mushroom)