Following an extensive series of interviews and discussions between the author and Hatsumi Sensei, who is the Sōke (Head) of the Bujinkan Dōjō Organization, this book details the traditional medical methods that Dr Hatsumi inherited from his teacher Takamatsu Toshitsugu Sensei. It is Hatsumi Sensei's wish that a record of these traditions continues into the future. This book covers a broad range of subjects relating to traditional medical and health methods used in Japan, and in particular their relationship to Budō (Martial Arts).

Containing numerous photographs of Hatsumi Sensei demonstrating these techniques in the Hombu Dōjō in Japan and transcripts of interviews with him, this book also provides a historical record of the Amatsu Tatara Hisshin Ginroku, which was written by Takamatsu Toshitsugu Sensei, now for the first time translated* and published. It includes the spiritual aspects of the documents and an encyclopaedic list of pathologies and historical natural treatments. *(these documents fully translated into English and also shown in Japanese).