Yin and yang of the observation. The yin yang (i.e. taijitu symbol) shows a balance between two opposites with a portion of the opposite element in each section. In Taoist metaphysics, distinctions between good and bad, along with other dichotomous moral judgments, are perceptual, not real; so, the duality of yin and yang is an indivisible whole. In the ethics of Confucianism on the other hand, most notably in the philosophy of Dong Zhongshu ( 2nd century BC), a moral dimension is attached to the idea of yin and yang. These Chinese terms "yin" 陰 or 阴 "shady side" and "yang" 陽 or
Yin and yang < *"ʔəm" compares with Burmese "ʔum" "overcast; cloudy", Adi "muk-jum" "shade", and Lepcha "so'yǔm" "shade"; and is probably cognate with Chinese "àn" < *"ʔə̂mʔ" "dim; gloomy" and "qīn" < *"khəm" "blanket" "Yang" < *"laŋ" compares with Lepcha "a-lóŋ" "reflecting light", Burmese "laŋ" "be bright" and "ə-laŋ" "light"; and is perhaps cognate with Chinese "chāng" < *"k-hlaŋ" "prosperous; bright"; "bǐng" < *"braŋʔ" "bright"; "liàng" < "*raŋh" "(pale) light"; "lǎng" < "raŋʔ" "brilliant light"; "míng" < "mraŋ" "bright, become light, enlighten". Schuessler surmises that those items either are areal words (cf. Tai "plaŋ" "bright") or belong to an Austroasiatic word family (cf.