The Story of Huai Su tells the story of Huai Su writing on the blackboard in order to practice calligraphy. In ancient times, there was a monk named Huai Su. He loved writing since he was a child, and he was a good boy who was eager to learn and make progress. Huai Su writes very carefully. He always sees the shape of the words first, remembers the order of the words, and then writes one by one. In this way, Huai Su's calligraphy has made rapid progress.

Legend has it that paper was expensive at that time, so Huai Su found a board to use as paper. He wrote and wrote, and with the passage of time, the board was thoroughly written. When Huai Su grew up, he became a famous calligrapher.

There is a swimming pool next to where he lives. It is said that every time Huai Su practices calligraphy, he will wash the brush and inkstone in this pool, which will be dyed black after a long time, so this pool is also called Mo Chi.

Brief introduction of Huai Su

Huai Su (737-799), an outstanding calligrapher in Tang Dynasty, was known as "Cao Sheng" in history. The common surname is money, and the word hides the truth. The monk named Huai Su was born in Lingling, Yongzhou (now Yongzhou, Hunan) and moved to Changsha. Qian Qi's nephew, one of Dali's ten gifted scholars.

Huai Su became a monk in his early years. From the third year (768) to the seventh year (772), I went to Beijing to visit famous artists, and the title of the book was greatly improved. In the seventh year of Dali (772), Huai Su paid a visit to Yan Zhenqing in Luoyang, and introduced his brushwork "Zhechai Gu" to Yan Zhenqing, while Yan Zhenqing told him about his "leak mark". Huai Su spoke highly of him and worshipped Yan Zhenqing as his teacher.

Yan Zhenqing wrote a master's cursive song in Huai Su. Soon, Huai Su returned to Huzhou to visit relatives. During my stay in Huzhou, I visited Lu Yu, Jiao Ran and other celebrities. After Huai Su became a monk and meditated, he continued to write. Later, I felt that I didn't have much knowledge, so I traveled around Chang 'an and Luoyang and saw some precious calligraphy products, which made him suddenly enlightened and his calligraphy improved greatly. He was addicted to cursive writing and liked to drink, and bars sprang up, so he picked up a pen and wrote. Huai Su spent his later years in Baoyuan Temple in Chengdu, Sichuan. Tang Zhenyuan died in the 15th year (799).

The above contents refer to Baidu Encyclopedia-Huai Su.