The Book of Tea written by China Cha Sheng Lu Yu (733~804) in the Tang Dynasty was first introduced to Japan, which brought systematic knowledge of tea planting, tea picking, brew tea and tea tasting to Japan. However, the tea culture in this period was forgotten with the war and failed to develop.
Later, during the Heian period in Japan (794~ 1 192), the envoys sent by Japan brought back the formula and habit of drinking tea, but it was only popular among nobles and monks.
During the Kamakura period in Japan (1 185~ 1333), Zen master Rong Xi, the founder of Lin Ji School of Buddhism, brought back tea from China and planted it in Kyushu, Japan. Later, he also sent some enlightened people to Uji, which is the origin of the famous "Uji tea" in Japan. During this period, the cultivation of tea and the habit of drinking tea gradually became popular. 12 14, Master Rong presented the book "Eating Tea for Health" and tea leaves to the shogunate general Yuan Yeshang, and spread tea culture to the samurai class.
At the same time, Cao Dongzong, a Taoist Zen master and founder of Buddhism, wrote the book "Yongping Clear Rules" according to the clear rules of China Buddhist Temple, describing in detail the etiquette and practice of tea worship, which became the origin of Japanese tea ceremony.