Shoulder-lifting is also a kind of anti-shoulder. It originally refers to the posture of the human body. Some people have uneven shoulders, one is high and the other is low. As the saying goes, it is called "anti-shoulder". Borrowing is a figurative meaning in calligraphy.
Because "horizontal" is like the shoulder of a word, it is very important in writing, but horizontal characters can't be written peacefully, and they must be left low and right high to be stable, so it is called "shoulder".
Extended data:
There are three forms of regular script: one is heavy shoulder turn, the other is anti-shoulder turn, and the third is round turn. The turning points of horizontal and vertical folds are different according to the square in the square and the square in the circle, and there are also square folds and dark round folds behind the first circle. The folding techniques of horizontal folding and vertical folding used in different books also have their own characteristics.
For example, the turning point of regular script in Yan Zhenqing and the turning point of regular script in Ou Yangxun adopted different methods.
Hard pen short horizontal formula: write short horizontal, uneven, shoulder slightly raised, pen up. The short heel angle is 5-8 degrees.
Hard pen long horizontal formula: write long horizontal, certain, and seek zero to five degrees stability. Longitude and lateral inclination are 0-5 degrees.
Baidu encyclopedia-regular script