"An Introduction to Calligraphy in Luzhen, Zhu Qing, said:" There are setbacks in books, and the front is Fang Bi, and the law is based on the finger. "Reality refers to the action of suddenly stopping when carrying a pen to change direction. Generally, when you reach the corner, you should pause first, then lift the pen a little, and let the pen tip rotate, thus changing the direction. Be measured when you are frustrated. If you go too far, you will lose contact. If not, you will be short of breath.
The so-called twisting pen simply means twisting the brush pen when writing, which is an action made according to the needs of font and stippling. We don't know whether the ancients used a twister, but the word twister has existed since the Tang Dynasty, but it was produced when it was used to play flute and other musical instruments. It is recorded in "Wo Jiao Shan Fu": "Although the moon is open, it can accommodate children; Twisted pipes in the clouds will only attract the phoenix. "Here, there is an action called twisting tube in oral sex, which means that after this action, you can attract the phoenix.
Chen Yizeng, a calligrapher and calligraphy theorist in Yuan Dynasty, first put forward the concept of twisting tube in calligraphy. He said in the "Hanlin Essentials Writing": "Twist the tube, twist the tube head with the big finger and middle finger, keep the side file, and the book is long." Later, Chen Qiyuan, a calligrapher in the Qing Dynasty, also wrote in Notes on Yongxianzhai: "The spirit is bound to be separated by cantilever, although the flying head is also separated; If you twist a pipe by half an inch, it will be a box of different sizes. "