I remember during the Vietnam War a Buddhist monk by way of protest sat down in the middle of a busy intersection, poured gasoline over himself and then calmly sat while he burned to death. There was a photo in Life magazine showing this incident. More recently, in the last few years Buddhist monks in Tibet have been doing the same to protest the Chinese invasion. That is a level of commitment I find incredible.

Back in the 20th century Roger Bannister, a Brit, ran the worlds first 4 minute mile, an athletic feat many thought was impossible. Today, that is common and in fact the best high school track runners are near that fast.

From these examples it is clear that whatever the physical limits of the human body, no one knows where those limits are and training the mind will make it possible to explore those limits. I think a good example of exploration of those limits is found in the world of extreme skiing. It is truly amazing to see someone hurl themselves off a big mountain on skis, practically in free fall and in control. http://www.youtube.com/watch?v=vYKhc...eature=related