Only soft pens are strange.

Cai Yong's "brushwork" said: Only the soft pen is strange. This is the golden needle of calligraphy. But the pen is softer than everyone's, so why everyone uses it has different effects. The masterpieces of calligraphy left by the masters of calligraphy in past dynasties have brought the softness of the pen to the extreme, but more people have no natural good structure because of the softness of the pen, which has been passed down to future generations. The same is true today. Soft coverage requires preconditions, and soft coverage can be achieved for soft-hearted, soft-hearted and whole body. Softness comes first. Buddhist practice also talks about cultivating a soft heart. Earth treasure bodhisattva vows: hell is not empty, and vows not to become a Buddha. It is the ultimate principle of gentleness, compassion and compassion. Softness is also the foundation of Tai Chi. But the heart is soft, the whole body is full of qi, the hands and even the whole body are soft, and kung fu is born from this. However, it will take years or even decades to achieve. This is a necessary skill for advanced calligraphy. Only by being soft-hearted, soft-hearted and soft-hearted can we understand strength. Holding a brush can be soft or hard. Wool, wolf hair and double brush can all be soft because of physical and mental weakness, so that they can do whatever they want from the heart without crossing the line, which is acceptable to all the world. Powerful calligraphy often comes from the softest wool, while elegant and handsome calligraphy comes from the tougher wolf hair or double-stranded brush. This is also the reason why the heart is soft and the whole body is soft.