When writing a stroke, the beginning of the stroke is reverse (hidden front) and reverse twist, and the stroke is a stroke (middle stroke).
The so-called twisting tube does not twist all the time, but makes the twisting tube reach a "positive front" state according to the needs of pen transportation, or in strokes or in the air, that is, turns the pen to the center.
2. Twisting tube, or rotating tube, is a technique of writing brush font. Generally speaking, when writing brush characters, twist or rotate the pen tube clockwise or counterclockwise according to actual needs. The function of twisting the tube is to keep the pen tip smooth and ensure smooth writing; By twisting the tube, the pen tip can be adjusted to run in the center of the stroke at any time, which is what we often say. Only by moving the pen to the center can we finally achieve the artistic effect of penetrating the back of the paper.