I'm going to relate an experience I had with a college professor who taught psychology, I met him at a pentacostal meeting 16 or so year ago, we spent time hiking and we talked and he informed me about his past as a college professor. Seems he lost his credentials by writing a bad paper about his experience in Brazil with some voodoo priests. Anyway we got into some deep discussions about psychedelic drugs, enlightenment, he told me about some of his work with sensory deprivation on prisoners, and psychosomatic healing. He said that he took a bunch of equipment(EEGs and whatnot)to examine these people during certain experiments. Anyway long story short he claims these people alter him and his equipment with their powers.
I guess that was why he was at the meetings it seems that these people caused his kundalini to be come awakened and he was seeking some relief from it(put it back to sleep).
Here is something about the spiritism in Brazil: