The Ki Society (気の研究会 Ki no Kenkyūkai?) is an aikido organization founded by Koichi Tohei in 1971, while he was the chief instructor at the Aikikai Hombu Dojo. The official Japanese name of the organization is Shin Shin Toitsu Aikido Kai (心身統一合気道会), but it is more usually known in English-speaking countries as "Ki Society". Its foundation reflected Tohei's differences with the Aikikai, and his own emphasis on developing the concept of Ki. Tohei's art is correctly called Shin Shin Tōitsu-dō (心身統一道), meaning "the way of realizing the [original] unity of mind and body", but the martial discipline of the art is frequently isolated and referred to as Ki-Aikido, particularly in the Western world.
At the Ki Society, Tohei envisioned a place where Ki could be taught to students of all ages, including the handicapped and infirm, and also to those incapable of Aikido practice. Aikido is just one of the disciplines in Tohei's holistic art of Shin Shin Toitsudo; there are in fact five disciplines learned by students at a Ki Society Dojo:
- Shin Shin Toitsu Aikido
- Kiatsu (personal health and healing)
- Ki Breathing
- Ki Meditation
- Ki Development Exercises (methods for realizing oneness of mind and body are Oneness Rhythm Exercise, Sokushin no Gyo, and Senshin no Gyo)
Being one of the first Japanese to bring Aikido to the West from Japan in 1953, Tohei discovered numerous obstacles in teaching. Western students did not accept teachings at face value, and bombarded Tohei with questions, and even occasional "attacks" to test Tohei's real ability. Due to these teaching situations, Tohei was forced to create a very clear system of teaching that combines Western methods to teach Eastern concepts such as ki, one-point, relaxing completely in a live fashion, etc. Through his lifetime in wars abroad and at home, and through his experiences with Aikido, in Sokushin no Gyo at the Ichikukai dojo, and the Japanese Yoga teachings of Tempu Nakamura, Tohei realized four universal principles that he felt should be used in all Ki Society practice, and in everyone's daily life.
- Keep One Point
- Relax Completely
- Keep Weight Underside
- Extend Ki
Shin Shin Toitsu Aikido Kai hosts an All-Japan Taigi Competition every year at Ki no Kenkyukai (HQ), and every four years the World Taigi Competition is held there. Various techniques are grouped into 31 sets, each of which are called a 'Taigi', and participant teams perform from two to five taigi, selected from that year's taigi choices. The competition is one of measuring the nage's form and movement with uke, rather than a competition between two opponents. It is most closely compared to paired figure skating competition or ice dancing competition, with judges awarding points for balance, largeness, and rhythm.
- Koichi Tohei: Ki in Daily Life. Japan Publications, Tokyo, 1978, ISBN 0-87040-436-9
- Koichi Tohei: Book of Ki: Co-ordinating Mind and Body in Daily Life. Japan Publications, Tokyo, 1976, ISBN 0-87040-379-6
- Koretoshi Maruyama: Aikido with Ki. Japan Publications, Tokyo, 1984, ISBN 0-87040-566-7
- Reed, William: Ki: A Practical Guide for Westerners. Japan Publications, Tokyo, 1986, ISBN 0-87040-640-X
- Reed, William: A Road That Anyone Can Walk: Ki. Japan Publications, Tokyo, 1992, ISBN 0-87040-799-6
- Tohei, Koichi: Kiatsu. 2002, Japan Publications Trading Co; New edition edition, ISBN 978-4889960860