A form of self-defence, based on special principles (lit. harmony of spirit)
United spirit. The spiritual principle of destroying an adversary's will to fight, or the physical act of dominating an adversary by harmonizing with his force and redirecting it. (Japanese)
Aiki is a film about a martial artist in a wheelchair. The film is from Japan and was released in 2002. It is loosely based on the life of a Danish practitioner of the Roppokai branch of Daito-ryu aiki-jujutsu, Ole Kingston Jensen, who started training in Daito ryu after he was handicapped in an accident and now is the highest ranking non-Japanese member of the Roppokai.
Aiki is a martial arts principle or tactic.