Fang Jin is as old and clumsy as a tortoise and a turtle

This sentence means that you can feel the positive and powerful shape of the glyph below. Ancient and clumsy is not clumsy but simple. Turtle is the shape of the glyph

The silkworm head and wild goose tail pen must be folded in three parts

The first sentence is compared to the three-fold type of pen and one horizontal stroke. It says that the pen is drawn (out of the silkworm head), the curved pen (out of the spine), and raised (out of the swallow tail)

The wild geese do not fly together and the silkworms have no two colors

There is only one silkworm head in the word "swallow tail" and cannot be written

Stippling, pitching, left picking, right picking

This is about the writing method of pointillism. How to put it in a good way? You can realize that the other points of harmony are the same

The emphasis on turbidity and the lightness of clearness is decisive

It goes without saying that the strokes should be strong. The first two characters and the last two characters of "emphasis on turbidity and lightness on clearness" refer to the way of writing the strokes and the feeling it gives...