Daito Ryu Aikjujutsu was poularized by Sokaku Takeda. From Daito Ryu we see the focus on subtle application of principles. We also find the idea that techniques can have many levels. We can see the term Aiki (Hapki in Korean) in the early text found in Japan with the title “Aiki In Yo Ho”, translated as the harmonious interaction of Yin and Yang. These are the same ideas that are the foundation of Eastern medicine. In this kind of art we find a large number of techniques pointing toward central themes such as Aiki Age (harmonize up) and Aiki Sage (harmonize down). We have been fortunate to explore concepts of Aiki with Fumio Toyoda Shihan, Nick Lowry Sensei, Howard Popkin Sensei, Eric Pearson Sensei, and Roy Goldberg Sensei.
Chung Moo Sool are the Court Martial Arts found in Korea before the Japanese occupation. They are a combination of village martial arts (largely games and dance), monastery and hermit martial arts (largely meditation and medicine), and military arts. According to Grand Master Myung, his teacher, Yong Sool Choi (the founder of Hapkido), had a colleague, named Myung Mu Dosa, who influenced his art. Other early practitioners of Hapkido studied with and talked about several monks of note. Ji Han Jae called his monk teacher Brother. In Hyuk Suh mentions Hae Dong Seu Nim. Joo Bang Lee speaks of an extended period of study with Su-Ahm Dosa. The repeated theme of studying with martial monks of the area points to a strong living tradition that should not be ignored. All appear to have studied medicine and meditation strongly influenced by concepts of Yin and Yang (Um and Yang in Korean), martial games and dance as well as martial arts skills.