The word Psychedelic was coined by Humphrey Osmond (Jul 1, 1917 - Feb 6, 2004) back in 1957, from the Greek words for "soul," ψυχή (psyche) and "manifest," δήλος (delos). In easier terms, Psychedelic means mind manifesting. The term was coined as a noun used as alternative terminology to describe hallucinogen drugs in context with Psychedelic Psychotherapy. Psychedelic states are an array of experiences elicited by sensory deprivation as well as by Psychedelic substances. Such experiences include hallucinations, changes of perception, synesthesia, altered states of awareness, mystical states, and occasionally states resembling psychosis.
" To fathom hell or soar angelic, just take a pinch of Psychedelic "