The human spirit has produced some remarkable conundrums. Buddhist monks, as a form of protest, have set themselves on fire in the streets and sat quietly as they are incinerated. They can endure extremely low temperatures, and are even on record in the presence of American scientists voluntarily raising and lowering their heart rates to levels that could kill or cause serious damage to a normal person. Out of urban ghettos in America come art forms that have traveled the world, and as has become recently popular in reality TV shows, people who can perform artistic feats of strength and acrobatics that are unbelievable to watch. Why are people with nothing, either due to social conditions in the latter case or by religious vows in the first, able to do amazing things?