yeah i think that most drugs don't actualy produce the afects you think they do, infact they make your body produce the chemicals which give you the afects. like ecstasy works by making your brain produce lots of seratonin which produces feelings of euphoria. most of these afects can be enduced through natural means. i'm not sure how psychadelics work but i would imagine its in the same way as the effects can be caused naturaly through sleep deprivation or fever.