Zhang Xu's calligraphy began with Zhangzhi and Erwang, with cursive script as the highest achievement. History is called "the sage of grass". He himself is proud of inheriting the tradition of "two kings" and writes very well. On the other hand, he imitated Zhang Zhi's cursive art and created an unpredictable wild grass, which shocked the world. According to legend, he saw the princess arguing with her husband, and he heard the advocacy and got the meaning of brushwork; When I was in Yexian County, Henan Province, I loved watching Gong Sundaniang dance the sword of Xihe River, so I got the grass god. Yan Zhenqing resigned twice and asked him for his brushwork. Zhang Xu is a pure artist. He pours his emotions into stippling, and no one looks at it, and he is as intoxicated as a madman. Tang Hanyu praised in "Preface to Send a Noble Sage to a Master": "Emotion, embarrassment, sadness, happiness, resentment, longing, drunkenness, boredom and injustice, if moving in the heart, must be expressed in cursive script. Looking at things, we can see mountains and rivers, cliffs and canyons, birds, animals, insects, fish and flowers, the sun, the moon and stars, storms and fires, lightning and thunder, singing and dancing battles, and changes in heaven and earth. Congratulations, one is in one book, so the book of Xu is still as unpredictable as ghosts and gods, and it will eventually be praised by later generations. " This is a true portrayal of a real artist's obsession with art. No wonder later generations talked about calligraphy in the Tang Dynasty and praised Europe, Yu, Chu, Yan, Liu and Su, but they all admired Zhang Xu, which is unique in the history of art. He was honored as a "sage of grass" by later generations. Huai Su (725-785) was born in the Tang Dynasty. His name is Zangzhen, and his monk's name is Huai Su. His common surname is Qian, Han nationality, and he was born in Lingling, Yongzhou (Hunan). A good Buddha at an early age made a monk. He is the leader of a generation of coquettish cursive scripts in the history of calligraphy. His cursive script is called "crazy cursive script", and his pen is round and powerful, making it go round and round, unrestrained and smooth, in one go. He is as famous as Zhang Xu, another cursive writer in Tang Dynasty, and is called "Zhang Diankuang" or "Zhang Dian Zui".
Huai Su was smart and studious since childhood. He came straight to the point in his autobiography. He said, "Huai Su lives in Changsha, a young Buddhist. After meditation, I am quite fond of writing. " His spirit of studying hard and practicing hard is amazing. Because he couldn't afford to buy paper, Huai Su found a board and a disc and painted it with white paint to write. Later, Huai Su thought the lacquer board was smooth and not easy to ink, so he planted more than 10,000 plantains on a wasteland near the temple. When the banana grew up, he picked the leaves and spread them on the table, waving at the post. Because Huai Su practiced calligraphy day and night, the old banana leaves were peeled off and the lobules were reluctant to pick, so he thought of a way to stand in front of the banana tree with pen and ink and write to the fresh leaves, even if the sun shone on him like a frying pan; The biting north wind cracked his hands and skin, but he kept practicing calligraphy regardless. He kept writing about one place after another. This is the famous calligraphy practice of Huai Su Banana.
In the history of cursive art, Huai Su and his autobiographical notes have been talked about by calligraphy lovers for more than 1,200 years since the middle Tang Dynasty. Huai Su, a monk at the age of ten, was born in Lingling, Yongzhou (now Lingling, Hunan). When he was young, he loved calligraphy in his spare time after meditation. He is poor and has no paper or ink. He planted more than 10,000 plantains to practice calligraphy and used plantain leaves instead of paper. It's funny to call the residence "Green Temple" because the residence is all banana forests. Instead of paper, we use paint plates and boards to study hard and study hard. All the plates were written, and there were many broken pens, which were buried together and named "Pen Tomb".