Developed in Albuquerque, New Mexico, in 1974 by Justin Stone (1916 - 2012), tai chi chih has spread mostly through word-of-mouth in a grassroots fashion among practicing individuals.[citation needed] It is now taught and practiced in the US and Canada, France, Italy, New Zealand, Zimbabwe, Namibia, and other countries.[citation needed]
Tai chi chih has visual similarities to t'ai chi ch'uan, but no martial arts aspect. According to practitioners, tai chi chih focuses on circulating, developing and balancing the chi (in the traditional Chinese concept, a kind of spiritual energy residing in every living thing)"
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