What does the beauty of stippling mean?

The beauty of stippling lines is expressed by pen and ink. Calligraphers use pen-lifting, frustration, weight, thickness, strength, Ji Xu and other pen skills, combined with the rich changes of pen and ink, so that stippling lines are full of strength and emotion. Calligraphy pays attention to "roundness" and "astringency" with pens. The round pen is the pen used in the center, so the refill can often be used when stippling. Such lines are full, three-dimensional and three-dimensional, which can show substantial strength. Sewing a pen is to artificially create contrarian lines, so that the written lines are not slippery, but calm, dignified and vigorous, like withered vines.