It's very, very dangerous to lose contact with living nature. - Albert Hofmann

Lo más importante fue para mí el reconocimiento, confirmado por todos mis experimentos con LSD, que lo que de común se denomina «realidad», incluida la realidad de la propia persona, de ningún modo es algo fijo, sino algo de múltiple significación, y que no existe una realidad, sino varias; cada una de ellas encierra una distinta conciencia del yo.

4/19/43 16:20: 0.5 cc of 1/2 promil aqueous solution of diethylamide tartrate orally = 0.25 mg tartrate. Taken diluted with about 10 cc water. Tasteless. 17:00: Beginning dizziness, feeling of anxiety, visual distortions, symptoms of paralysis, desire to laugh. Supplement of 4/21: Home by bicycle. From 18:00- ca.20:00 most severe crisis. (See special report.) Here the notes in my laboratory journal cease. I was able to write the last words only with great effort. By now it was already clear to me that LSD had been the cause of the remarkable experience of the previous Friday, for the altered perceptions were of the same type as before, only much more intense. I had to struggle to speak intelligibly. I asked my laboratory assistant, who was informed of the self-experiment, to escort me home. We went by bicycle, no automobile being available because of wartime restrictions on their use. On the way home, my condition began to assume threatening forms. Everything in my field of vision wavered and was distorted as if seen in a curved mirror. I also had the sensation of being unable to move from the spot. Nevertheless, my assistant later told me that we had traveled very rapidly. Finally, we arrived at home safe and sound, and I was just barely capable of asking my companion to summon our family doctor and request milk from the neighbors. In spite of my delirious, bewildered condition, I had brief periods of clear and effective thinking — and chose milk as a nonspecific antidote for poisoning.

I suddenly became strangely inebriated. The external world
became changed as in a dream. Objects appeared to gain inrelief;
they assumed unusual dimensions; and colors became more glowing.
Even self-perception and the sense of time were changed. When the
eyes were closed, colored pictures flashed past in a quickly changing
kaleidoscope. After a few hours, the not unpleasant inebriation,
which had been experienced whilst I was fully conscious, disappeared.
what had caused this condition?