details. He is using all sorts of energy by squeezing his muscles long before his fist reaches the target. A more advanced practitioner, in contrast, stays loose and relaxed until frame number seven or eight. At higher levels, the tensing takes place at frame number 10, the last moment. From there, more mastery comes when you do not tense at the beginning of number 10, but at the last part of it. The karateka calls this ability “turning laziness into technical mastery.” Note that this kind of “laziness” does not refer to slowing down or weakening the contraction, but to limiting its duration,
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