It should be the four-character calligraphy of "Tea Zen Blindly" given to Japanese disciples by Yuan Wu Kele, a Zen monk in China in the Song Dynasty.

The wind of drinking tea in the Tang Dynasty originated from the monk's family, and the allusion of "tea Zen blindly" originated from the famous saying of the monk in Zhaozhou-"Go for tea". Yuan Wu Keqin, a monk in the Song Dynasty, savored the infinite mystery of tea with the concept and thought of Zen, and wrote "Tea Zen Blindly" with a wave of his hand. His original work was taken to Japan by disciples, and now it is treasured in Daejeon Temple in Nara, Japan, as a treasure of Zhensi.

At the end of the Southern Song Dynasty, the ancestor of Japanese tea ceremony, Senior Monk Rong Xi, came to China twice to participate in meditation, and brought the Blue Rock Record and Wu Yuan Zen master Mo Bao back to Japan. 1 19 1 year, he wrote a book, Eating Tea for Health, and became the founder of Japanese Buddhism Lin Ji and Japanese tea ceremony. /kloc-In the middle of the 5th century, Zhuguang Murata, a Japanese monk, entered the temple to learn Zen and studied under a famous monk. However, Zhuguang often dozed off during meditation, and the doctor advised him to "drink some tea", and the result was immediate.