Be aware: Unless you have very good connections, the psychedelic “LSD” you can get on the street today is likely not of the same chemical composition as the common LSD of 1985. It will still give you a psychedelic experience, but the type of trip and risk profile may be different.

For a non-pharmacological trip, I highly recommend “Psychedelic Information Theory”: http://psychedelic-information-theory.com/pdf/PIT-Print-Web.... [PDF]