"Bufotenin (5-OH-dimethyltryptamine), a hallucinogen present in toadskins as well as in the Amazonian-Antillean narcotic snuff (Anadenanthera peregrina) and in some higher plants and animals, seems specifically to promote a feeling of flying through the air–a factor to be taken into account in reports of shamanistic ‘journeys’ among paleo-Siberians, and in witches’ flights in late medieval Europe."

–Weston La Barre (1980)