wonderful comments on zen, however, if you practice zen for a benefit you miss the whole point of zen. The purpose of zazen is not to 'get' anything, but to just sit. My zen teacher would tell us that zen is worthless. It is good for nothing. I often thought, why even practice then. Now I understand. If you practice zazen with a purpose of benefit in mind your mind is split. It's like a receiver in football who keeps turning his head just before he is to catch the ball. His mind is on the benefit of touchdown...but he forgets to catch the ball! He therefore not only can't score, but doesn't even catch the ball. His mind is split into two directions and this is not zen. zen is to be here now and simply catch the ball. If you want to improve your concentration, or relax better or calm the mind or improve your sidekick, there are a lot of ways to do this. But to use zazen in this manner is a misunderstanding of zen practice. Now, don't get me wrong. Benefits do come from zen practice, but these come naturally and don't need to be chased. Just catch the ball. Just be here now and trust the process of watching the breath come and go. Now that I've muddied the waters it is best I shut up.