also: おんようどう
noun
Onmyōdō; way of Yin and Yang; occult divination system based on the Taoist theory of the five elements
A traditional Japanese esoteric cosmology and divination system derived from Chinese Yin-Yang and Five Elements philosophy. Often associated with onmyōji (陰陽師) practitioners in the Heian period.
陰陽道は平安時代に貴族の間で広く信じられていた。
Onmyōdō was widely believed among the nobility during the Heian period.
陰陽道の考え方は、方角や暦の吉凶を占うのに使われた。
The ideas of Onmyōdō were used to divine the fortune of directions and calendars.