Indeed, ironically, Burning Man was originally a Pagan human sacrifice ritual and during a modern day reenactment of the ritual, Susan Sarandon drank the ashes of the man whose corpse was burn (cremated) Timothy Leary.
Leary is known as many things such as a “drug guru” best known for his motto “Turn on, tune in, drop out” as in get “turned on” which was 1960s AD common parlance for getting high on drugs, “tune in” as in into, like, the vibe maaaaan and “drop out” or society and its traditional values.