Sokushinbutsu

Sokushinbutsu - Buddhist ritualistic self-mummification - For 1000 days the priests would eat a special diet of nuts and seeds, while taking part in rigorous physical activity that stripped them of body fat. They ate only bark and roots for another 1000 days & drank poisonous tea made from the Urushi tree. This caused vomiting & a rapid loss of bodily fluids & made the body poisonous to maggots. The monk would then lock himself in a stone tomb where he would not move from the lotus position.