The Eight Methods of Yongzi take the stipple writing method of Yongzi as an example to explain the method of using pens and composing characters in regular script. Its sources are as follows: Zhang Huaiguan of the Tang Dynasty's "Yutang Forbidden Sutra": "The Eight Methods originated from the beginning of Li Zi. Cui Zi of the Later Han Dynasty, under Yuli Zhong and Wang, taught that the eight styles used should be used in Wanzi." "General brushwork, stipple eight styles , prepared with the word 'Yong'". (The official script here refers to regular script, not official script. Regular script in the Tang Dynasty was called official script. In the Eastern Jin Dynasty, Wang Xizhi also called it official script. We think of official script as eight points.)
Li Puguang of the Yuan Dynasty " "Xue'an Bafa·Bafa Jie": "In the past dynasties and below, calligraphers have mastered the wonderfulness of calligraphy. Those who are famous in the world include Zhong Yao and Wang Xizhi in the Wei and Jin Dynasties, Ou (Yang Xun), Yu (Shi Nan), and Liu (Liu) in the Tang Dynasty. Gongquan) and Yan (Zhenqing) also have books in each family, which are passed down. Unfortunately, they have been lost for a long time, and the original works are not preserved. Only the Eight Methods of "Yong" written by Xi Zhi, "Samadhi Song", "Fashion Garden": "Wang Yi Shao Gongshu focused on the eight methods of 'Yong' for fifteen years. With the power of the eight methods, he can penetrate everything." Song Zhu Changwen's "Mochi Pian" and "Zhang Xu Chuan Yongzi Bafa" are the same as "Ode to Liu Bafa" and "Ode to Yan Lu Bafa".
The "Samadhi of Calligraphy" in "The True Story of Calligraphy" by Feng Wu of the Qing Dynasty says: "Every study must have essentials, if the net is in the outline, it is orderly and orderly. The word 'Yong' is the outline of all words. Yes, if you know this, there are thousands of words."