"Slowly I came back from a weird, unfamiliar world to reassuring everyday reality. The horror softened and gave way to…"

"Deliberate provocation of mystical experience, particularly by LSD and related hallucinogens, in contrast to spontane…"

"4/19/43 16:20: 0.5 cc of 1/2 promil aqueous solution of diethylamide tartrate orally = 0.25 mg tartrate. Taken dilute…"

"I was seized by the dreadful fear of going insane. I was taken to another world, another place, another time. My body…"

"Outside is pure energy and colorless substance. All of the rest happens through the mechanism of our senses. Our eyes…"

"In studying the literature connected with my work, I became aware of the great universal significance of visionary ex…"

"I share the belief of many of my contemporaries that the spiritual crisis pervading all spheres of Western industrial…"

"There are experiences that most of us are hesitant to speak about, because they do not conform to everyday reality an…"

"It's very, very dangerous to lose contact with living nature. … In the big cities, there are people who have never se…"

"This self-experiment showed that LSD-25 behaved as a psychoactive substance with extraordinary properties and potency…"