Ayahuasca use with indigenous cultures
I've done Aya many many times, mostly in America and the teaching surrounding it's use are pretty uniform as therapeutic and medicinal. Boy was I surprised when I went to Peru and saw how so many of the locals use it. I kid you not, they use it as a "Bruja", jilted lovers casting spells on exes or cursing co-workers they have personal beef with. It's heavy use as dark magic is very common in South America yet I never hear this talked about in America.