Chinese sun and moon mirrors being hung round the neck, or because necks are concave things. Liu An's (c. 139 BCE) "Huainanzi" "Masters of Huainan", which is a compendium of writings from various schools of Chinese philosophy, was the first text to record "fangzhu" dew-collectors. Two "Huainanzi" chapters metaphorically use "sun and moon mirrors" to exemplify "yang" and "yin" categories and elucidate the Chinese notion of "ganying" "cosmic resonance" through which categorically identical things mutually resonate and influence each other. The "yángsuì" 陽燧 "burning-mirror" is "yang", round, and sun-like; the "fāngzhū" 方諸 "square receptacle" is "yin", square, and moon-like. The first context describes "yangsui" and
Popular belief lacks a formal canon. Rituals take place before home altars or at temples, which have no fixed congregations. Adherents vary considerably in belief and practice. Generally, folk religionists are fatalistic yet believe that one's luck can be affected by pleasing ancestors or gods, by locating graves and buildings in places where vital natural forces are located (geomancy), and by balancing opposing forces (yin, yang) within one's body. In Korea, Buddhism, Confucianism, and Taoism have influenced the elite, while a folk religion has existed among the common people that resembles Chinese Folk Religion. However, unlike the Chinese case, most Korean spirit