Why does writing brush strokes have a feeling of "floating"?

I think this is because when we are writing calligraphy, it is caused by our tools. Secondly, the unique writing style of China's calligraphy also creates objective conditions for this feeling. Finally, it takes some skill and time to overcome this problem. The particularity of tools is actually easy to understand. The special material and usage of the brush had a far-reaching impact on the formation and shaping of China. The biggest particularity of Chinese brush lies in the softness of animal hair on the tip. Is the writing material is soft, gathered a lot of animal hair. These structures usually look loose, but once they get together, they can write the direction of Ma Benteng. The combination of rigidity and softness of the pen tip also gives China a lot of room to change. However, this feature also makes China more difficult. If he can't control it well sometimes, he will feel "floating" when writing with a brush as described in the question.