Many people I know, including powerful martial artists, have told me their experiences with a traditional South American shaman were literally the hardest and most painful thing they've ever gone through. .
care to name a few? of course the experiences were painful, because they would beat you with a big and ugly sticks and then laugh at you and threw a big bonfire party in your honor.
after the first few sentences, my eyes glazed over and scratching my head (head lice - out sourcing my thinking to the lice), and said to meself, "what in the god name was he talking about about...about??!!!" about.