The title of this blog comes from a Japanese phrase often applied to the martial arts, but also to other disciplines such as the tea ceremony.
動 — “dou”, move, happen, movement, action
中 — “chuu”, central, centre, middle, in the midst of, hit (target), attain
の — “no”, possessive suffix
静 (or 靜) — “sei”, quiet, still, motionless, gentle
Thus, 動中の静 means “the stillness of/in the midst of motion”, or “calmness in action”. It’s very difficult for me to articulate it precisely, but this seems to me to be among the cardinal qualities (virtues?) of the martial arts. The moments when I feel it in Aikido, Iaido or Zazen practice — or just in ordinary daily life — are sublime and priceless.