This is the basic principle of China's calligraphy. It is said that it was created by the holy king in the book. Later, it spread to Wang Xizhi's grandson Ziyong VII, and then to Yu Shinan, a calligrapher in the Tang Dynasty. The Eight Laws of Yan Hong expounds the basic rules of regular script according to the stroke order of Yong characters. Calligraphy has been used to this day. The original meaning of the word is a graphic image, which is curved, tortuous and extended like running water, meaning "long"
The explanation in Shuo Wen Jie Zi is: Yong, the water is also very long. It is always in the form of winding water. This is an obvious hieroglyph, but when you think about it, it is similar to Yongzi today. During the bronze inscription period of Shang, Zhou and Jin dynasties, there was little change, and the original shape was basically maintained, but the style became heavier. In the bamboo slips of the Han dynasty, it is very similar to today.
The mature characters in the mature customs of the Han Dynasty are basically similar to the Yong characters we use today, and people who generally do not need language or calligraphy training can recognize them. Although Wei Shu in the Northern Wei, Wei, Jin, Southern and Northern Dynasties is elegant and mature, some words still retain the shape of pear trees. By Wang Xizhi, the word Yong is exactly the same as what we wrote today. No wonder Wang Xizhi is a master of calligraphy. No one can compare. By the Tang dynasty, the script had fully developed and matured, and the technology had entered its heyday. At this time, the script at that time was unparalleled by future generations, and it will always be a very auspicious word. I wish you happiness forever!