The words written in the center are rich in connotation and sincere, which shows the skill of "quietness". The words written on the flank look sharp and arrogant, and the strength is not enough;
Wing and center are both terms in calligraphy, which is a writing skill. Side refers to the posture in which the front end of the pen is slightly sideways and the position where the ink falls is sideways when writing. This brushwork was first formed when official script evolved into regular script. It adds chic beauty to Fang Bi's handwriting. The winger is mostly used to gain motivation and turn into a center.
Center means that when writing strokes and painting Chinese paintings, the pen is impartial, so that the main front of the pen remains in the point and painting, which is called "center".
It is very important to practice winger and center when learning brush calligraphy. The two techniques of "side and middle" have played a great role in whether the calligraphy can be written well.