no fear no pain..
but i think the hitting part is about making muscles, becouse he makes them hard he hits them, and so on, thats how the muscles are produced, a lazy friend of mine, just took a woonen stick layed down in front of tv and hitted him self on the stomach for a time, later he got very nice stomach muscles, maybe thats the same thing? just doing it other way, maybe its just to make muscles harder.... i dont know, dont know even the style, anyone trains it or something here?
it was only strange whit the kinfe stuff,... cant get to my mind that they didnt got cut.. strange things...