It's all about discipline - and having an inner calm. That's one of the main driving forces for me when I step into the ring - you can't have a fight and lose your temper. You need to remain calm and focused when everything around you is in chaos. It's a similar thing for the buddhists - they remain calm and disciplined in the hurly burly of everyday life.
Johnny 'Two worlds collide - the boxer meets the Buddhists'