Qi

Qi (Chinese: 氣) is a fundamental concept in Chinese philosophy, medicine, and religious practice[1]. The character is sometimes translated as breath, vital energy, or life force, but no single English word captures its range[2]. The traditional rendering ki appears in Japanese contexts; chi or ch'i appears in older English transliterations.

qi changes meaning across medicine, cosmology, martial practice, and spiritual discourse.

Qi names the dynamic force that underlies all things in classical Chinese thought. Everything has qi; the proper functioning of human bodies, the productivity of land, the harmony of communities, and the rightness of action all involve the proper flow and balance of qi. Different domains of Chinese culture engage qi with their own emphases.

In traditional Chinese medicine, health involves the proper flow of qi through specific channels (meridians) and the balanced functioning of qi in the organs and tissues. Acupuncture works by adjusting qi flow at specific points. Herbal medicine, diet, and exercise also aim at qi regulation. The concept underlies practical clinical work as well as theoretical reflection.

In Daoist religious practice, internal alchemy (neidan) involves the cultivation and refinement of qi within the body through meditation, visualization, breathing techniques, and physical practice. The goal varies by school: longevity, spiritual transformation, immortality in various understandings. Qigong (literally qi-work) names a family of practices for cultivating and circulating qi through movement, breath, and attention.

Martial arts including taiji (tai chi) and bagua work with qi cultivation alongside martial skill. The relationship between martial effectiveness and qi cultivation is a topic of ongoing debate, both within martial arts traditions and in scholarly study.

In Neo-Confucian philosophy, qi and li (principle) are paired as fundamental categories. Different schools work out their relationship differently; Zhu Xi treats li as ontologically prior, while later Neo-Confucians including Wang Yangming and Wang Fuzhi develop alternative accounts.

Modern medical research has examined claims about qi with varied results[3]. Acupuncture has shown effects in some areas of clinical research; the underlying claims about qi flow are interpreted differently by traditional practitioners and biomedical researchers.

Qi studies cuts across Chinese philosophy, history of medicine, religious studies, and contemporary scholarship on traditional medical practice. Major studies by Manfred Porkert, Paul Unschuld[2], and many others have examined the concept historically and clinically.

• Medicine in China: A History of Ideasby Paul U. Unschuld
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• The Foundations of Chinese Medicineby Giovanni Maciocia
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