1) The brush moves up and down on the paper, which is called boosting. Raising pressure is an important means of using a pen, and it is the key to the change of stroke thickness, shade and rhythm.
2) Starting a pen, writing a pen and collecting a pen are the beginning of each pen. First left and then right, first left and then down, first up and then scattered; A stroke needs a center. In order to make the strokes round and powerful and full of rhythmic changes, we must master the strength and speed; Closing the pen is the end of a stroke, and you must work hard until it is finished, so that the strokes are complete and solid.
3) Hidden front, center and flank hidden front refer to hiding the brush stroke when writing; Chinese means that the front end of the stroke runs in the middle of the stroke, which is the most fundamental brushwork in calligraphy. In order to make stippling vigorous and complete, calligraphers have always advocated "pen and ink centered", which is called "cone painting sand"; Side pen means that the pen tip deviates from the middle of the stroke and writes to one side. The flank can be combined with the center to make the strokes round and sharp.
4) Fang Bi and Fang Bi, round pens, mean that the starting, closing and folding parts of the strokes are square, angular and powerful; A round pen refers to a stroke with no edges and corners at the beginning, end and turning point. The pen body is wrapped in a front (the whole pen body is kept conical when writing, and its lines are concise and full of three-dimensional sense), and the pen body is closed with a front, which is subtle and round. Source: Wikipedia