Basic concepts of yin-yang technology

Yin and Yang have always been a very popular spell in ancient Japan. At that time, people often invited Yin and Yang teachers to pray and exorcise ghosts for them. Like Jiao Xiao and Abe Harumi, they were the most famous teachers of Yin and Yang at that time. It is said that until now, scrolls about Yin He have been found in some ancient temples (some people say they can be found in the library). But the records in those books have been copied many times and are probably inaccurate. In contemporary Japanese comics, most necromancers also use Yin and Yang. Yin-yang technique is widely spread in Japan, which shows one thing or two.

At first, the application of Yin-Yang Daoism was for the needs of national governance, such as judging good fortune or bad fortune, or delineating geomantic omen and terrestrial facies when building a new capital, in order to seek the reference standard of thinking and action. Even collecting military strategy and operational intelligence has gradually become one of his fortes. After the Heian period, in order to respond to the needs of the nobles in the imperial court, Yin and Yang teachers also began divination, offering sacrifices and judging the good or bad of the times or positions.