“…A particular group of psychoactive drugs used to change sensation and perception of the external world and to increase self-understanding and self-discovery are hallucinogenic drugs, including natural compounds, like mescaline and psilocybin, as well as semi-synthetic drugs, like lysergic acid diethylamide (LSD) (Cato, 1992;Boys et al, 1999Boys et al, , 2000Tupper, 2002Tupper, , 2003Nichols, 2004;Morgan et al, 2013). A similar instrumentalization might also apply to the enactogenic drug, MDMA (Boys et al, 1999(Boys et al, , 2000, which has a hallucinogenic profile and induces a unique feeling of 'divine oneness'…”