Chuck Clark wrote:
The reason I don't think it's necessary is that I've experienced people that develop that awareness and attention (it's part of zanshin when done properly and then muga mushin can develop also) from proper budo practice without doing zazen or any other form of sitting meditation.
Okay, I'll buy that. I don't think it works for everyone and I do think some kind of quiet meditation is useful. But for some people meditation is movement and vice versa.
It's hard, in any case, to argue with success.