Chinese sun and moon mirrors Chinese sun and moon mirrors The yángsuì 陽燧 or sun-mirror was an ancient Chinese burning-mirror that concentrates sunlight to ignite tinder and the fāngzhū 方諸 or moon-mirror was a device that collects nighttime dew by condensation. These two bronze implements are literary metaphors for yin and yang, associating the ""yang"-mirror" "yangsui" with the sun (a.k.a. "tàiyáng" 太陽 "great "yang""), fire, dry, and round, and the ""yin"-mirror" "fangshu" with the moon ("tàiyīn" 太陰 "great "yin""), water, wet, and square. There are numerous Chinese names for the fire-producing "yángsuì" 陽燧 "sun-mirror" and water-producing "fāngzhū" 方諸 "moon-mirror". Yángsuì < Old Chinese *"laŋsə-lu[t]-s" can
Yin and yang contracting) are thought of as physical manifestations of the duality symbolized by yin and yang. This duality lies at the origins of many branches of classical Chinese science and philosophy, as well as being a primary guideline of traditional Chinese medicine, and a central principle of different forms of Chinese martial arts and exercise, such as baguazhang, taijiquan (t'ai chi), and qigong (Chi Kung), as well as appearing in the pages of the "I Ching". The notion of a duality can be found in many areas, such as Communities of Practice, but in this context yin and yang are better