@DesertRose these kind of stuff is somewhat common here. Virtually everyone have heard about at least the hex where you put someone's name inside a frog mouth and sew it shut. Exús and other spirits are very well known here too, specially where I live in the north-east region of brazil. And even here it is partirculally strong in the Bahia and Maranhão states.
@elsbet before I met my girlfriend it seems that someone had spilled what I believe to be either MDMDA, PCP or GHB into her drink in college (thankfully she nothing of THAT kind happened to her) and she had some terrifying hallucinations where demonic hands where searching for her, she saw herself in a dark place, this kind of stuff with an intense spiritual feel while she was screaming and running around in college. I tought she was "only" tripping but now I do believe that at least
some of the stuff she saw had at least
something "real" about them, as she honestly tought she would die (and she really could die of cardiac arrest)