Write all the eight tanks of water, and the inkstone dyes the waterlogged pond black. What's the meaning?

It means: practicing calligraphy used up eight tanks of water, and cleaning the inkstone dyed the water in the pond black. After learning from the writings of many famous masters, I achieved extraordinary attainments in calligraphy.

1. This sentence comes from the story of Liu Gongquan practicing calligraphy.

2. Story content

When Liu Gongquan was a child, he was extremely smart, loved calligraphy, and could write well. He often showed off in front of others. One day, an old man selling tofu felt that Liu Gongquan was too proud and said that his handwriting was not good. Liu Gongquan was very unhappy and asked the old man to write and take a look. The old man said that he was a rough man and could not write well, so he asked Liu Gongquan to go to the city to have a look, and Liu Gongquan went to the city alone.

As soon as he entered the city, Liu Gongquan saw a one-armed old man writing couplets under the big locust tree. The handwriting looked like a group of galloping horses and dancing dragons and phoenixes. Liu Gongquan knelt in front of the old man, hoping to worship him as his teacher. He couldn't help Liu Gongquan's plea, so the old man agreed. The old man wrote with his right foot: Write eight tanks of water, and the inkstone will stain the waterlogged pond black; win hundreds of parents, and only then will dragons and phoenixes fly. .

Extended information

A brief introduction of Liu Gongquan:

Liu Gongquan, born in 778, had the courtesy name Chengxuan. A famous calligrapher and poet in the mid-Tang Dynasty, he was the younger brother of Liu Gongchuo, Minister of War. When Liu Gongquan was 29 years old, he passed the Jinshi title. In his early years, he served as secretary of the Provincial School Secretary and was incorporated into the Li Ting shogunate. He served as an official official in the Muzong, Jingzong and Wenzong dynasties and stayed in the court. Liu Gongquan served as an official for seven dynasties, rising to the rank of Prince's Shaoshi, and was granted the title of Duke of Hedong County. He served as the Prince's Taibao.

Liu Gongquan's calligraphy is famous for his regular script. He first studied Wang Xizhi, and later studied the calligraphy of famous calligraphers in the Tang Dynasty. He absorbed the strengths of Yan Zhenqing and Ouyang Xun, incorporated new ideas, and created his own unique "Liu style", which is based on the strength of bones. Good health. The handed down steles include "Diamond Sutra Engraved Stone", "Mysterious Tower Stele" and so on. Liu Gongquan is also a poet. Five of his poems are preserved in "The Complete Poems of the Tang Dynasty" and one poem is preserved in "The Complete Poems of the Tang Dynasty".