What's the difference between a Taoist priest and a Yin-Yang teacher?

The division of Yin and Yang originated in the 6th century AD, and Taoism was initially formed in the period of Yellow Emperor in ancient Xuanyuan (27 17-2599 BC). It was formally established by Zhang Ling, the ancestor of Shi Tian (34- 156) in the late Eastern Han Dynasty, with Huangdi as the ancestor, Laozi as the ancestor of Taoism and Zhang Ling as the godfather. Daoli has a history of more than 4700 years. Taoism advocates self-cultivation and refining Dan medicine, so as to achieve the goal of immortality. In the 6th century, China's theory of Yin-Yang and Five Elements was introduced into Japan by mixing Taoist incantations and esoteric occupations. After landing in Japan, it infiltrated many local cultures and formed a unique "Yin-Yang Road". However, it was already the tenth century when this term officially appeared in Japanese historical materials. At this time, Yin-Yang Tao is different from China's early thought of Yin-Yang. It has divination, sacrifice, astronomy, calendar and other applications, and can be used to explain everything from the country to the people. Shoto Kutaishi, who promoted the ancient dynasty, is the best person to use this knowledge. He believes in Buddhism and considers the coordination of Yin and Yang and the five elements when formulating the "Twelve Ranks of Crown" and clothing colors, which has a great influence on Japanese society. Since then, Yin and Yang teachers have become a popular "profession" and entered a period of all-round prosperity. You can look at the stars, face people, measure directions, know disasters, draw spells and perform illusions. People also realize that invisible forces, such as fate, soul and ghost, have the ability to dominate these things.