In kung-fu it is sometimes said that you must absorb form and then transcend form. In Hsing-I Chuan, the transcendant "no-form" is sometimes called da cheng chuan, great achievement boxing. Kenichi Sawai was such a master. In motion, Taiki-Ken looks like a cross between Tai Chi Chuan and Hsing-I Chuan, though it is taught in a much more flexible way. (I don't see any Ba Gua in it.) I would recommend this book to any practitioner of Tai Chi Chuan or Hsing-I Chuan who seeks to transcend the "forms" of these arts.