Mind-body practices originated in ancient cultures to enhance physical, mental, and spiritual wellbeing. Interest in their use in treatment stems from increasing awareness of their therapeutic potential and from the need for approaches that are cost-effective and have lower risks for adverse effects compared to pharmacological and other conventional interventions [1–3]. Rigorous research is nee...

Alex Grey, Viscera (detail), 1979. Oil on linen (84" x 46") Vision inducing plants, commonly referred to as entheogens, hallucinogens, and psychedelics, have played important roles in the therapeutic and religious practices of many societies. Cross-cultural research indicates that their common effects include the induction of powerful emotional, cognitive and therapeutic reactions and interpret...