What kind of brushwork is the leak mark?

What kind of pen technique is the following missing mark:

Leak marks are a calm and weighty brushwork.

1, missing the calligraphy clause. It is a metaphor for breaking the leak marks between the walls of houses with a pen. Its shape is dignified and natural, hence the name.

2. In terms of brushwork, the most outstanding contribution of Yan-style calligraphy is the central pen, which has changed the writing style with edges since Wei and Jin Dynasties, and hidden the positive side in the beginning, turning and closing of the pen. Use pens such as "drawing sand with a cone" and "leaking marks" to make bones firm and tough, and muscles plump and natural.

3. "Leak mark" is a very vivid statement as its name implies. This kind of scene was often seen in the northern countryside before the 1990s.

4. In rural adobe houses, the roofs are covered with wheat straw. Whenever it rains and snows, the rain flows along the straw to the wall, forming traces of different sizes and properties, which are called "leak marks".

On the drawing method of related leakage marks;

1. It is said that during the Tang Dynasty, Yan Zhenqing and Huai Su discussed brushwork in Luoyang, and Lu Yu recorded it this way: Su Yue said, "I have seen many strange peaks in Xiamen, and I need to learn from them often. Its pleasure is like a bird flying out of the forest and a snake jumping into the grass.

It's natural to run into a wall again. "ZhenQing said," how like a leak? " Su Qi shook hands with the public and said, "I see. "When talking with Gong Yan about his pen experience, Huai Su used four metaphors in succession: Xia Yun Qifeng, a bird out of the forest, a frightened snake into the grass, and a road to the wall, which Gong Yan didn't agree with.

3. "Leak mark" is a vivid metaphor for the brushwork and artistic effect of horizontal and vertical, even force and hidden front. When writing, the pen tube should fall down together, and the pen tip should run around in frustration, just like the water drops leaking from the house slowly trickling down the mud wall and winding down to bet, forming a bulging semicircle. The brush strokes are round, lively, thick and full, with a sense of three-dimensional, heavy and flowing.