Since there is evidence to show that the Ninja arts originated in China, and the practice of Kuji-In is somewhat integral to those arts, I wondered whether Kuji-In also originated in China, and whether it has a Daoist or Buddhist equivalent practice which is specifically Chinese? It is interesting to note that both Buddhist and Daoist cultivation schools make use of Mudra hand gestures, so it would make sense if it were true that the Kuji-In mudras either originated in Buddhist or Daoist cultivation methods of Chinese origin. So I would like to discuss these possibilities, as I am interested to learn how the original system differs from the Japanese version (if a Chinese version does or did actually exist). Thank you.