Hallucinogens are a chemical substance that causes hallucinations. Hallucinations, derived from Latin, álucinari, means to ‘wander in the mind.’ Hallucinations includes all sensory perceptions whether real or not. Psychedelics, Greek derived, translates to ‘soul and mind manifesting’ and are a class of hallucinogens that are useful tools in gaining understanding of how the brain, mind and body works. The study is complex and requires a broad and deep knowledge of the various mechanisms and…