What I am suggesting is that the appearance of small mystical societies in ancient times that ultimately evolved into more familiar modern-day organized religions was assisted by the universal presence of hallucinogenic plants that were able to alter how the brain functioned and to facilitate each culture’s communication with their gods and goddesses via the trance-like state they induced. Whether the induction of the trance is induced exogenously via a plant extract or endogenously via prayer, similar brain regions were responsible.
Know Thyself 