“Unlike the psychedelic painter Alex Grey, whose art conveys a true believer’s faith in the reality of an ultimately beneficent divinity accessible by means of “entheogens” — drugs that activate inner gods — and practices like meditation and chanting, Mr. Tomaselli teeters on the agnostic line between belief and skepticism.”
An entheogen, in the strictest sense, is a psychoactive substance used in a religious or shamanic context. Entheogens generally come from plant sources which contain molecules closely related to endogenous neurochemicals. They occur in a wide variety of sacraments of various religious rites UDV/NAC and have been shown to directly provoke what users perceive as spiritual/mystical experiences.
The word entheogen is a neologism derived from the ancient Greek : ἔνθεος (entheos) and γενέσθαι (genesthe). Entheos literally means "god (theos) within", translates as "inspired" and is the root of the English word "enthusiasm". The Greeks used it as a term of praise for poets and other artistscitation needed. Genesthe means "to generate". So an entheogen is "that which generates God (or godly inspiration) within a person". _Wikipedia