I’m not looking for that stupid "your getting sleeeeppyy" stuff. I’m talking about how to get someone to do somehing they wouldn’t do normally. Like eat something they hate.

There are even now few magicians in Calcutta, India. They teach all these things. You have to become a disciple. But before initiating, they may want you to remain on fast for a day. If you are prepared for it, then you may like to pursue. They don’t charge any fees for the tuition. But at the end of the course, the students are supposed to give some donations to the Master as a token of respect and affection.