Fu Shu originates from nature. When nature is established, yin and yang are born; when yin and yang are born, the situation emerges. Hide the head and protect the tail, the power is in the words, write hard, the skin will be beautiful. Therefore, it is said: The power coming is irresistible, and the power going is irresistible. But if the pen is soft, strange things will happen.
　　Whenever the writing is completed, the upper part covers the lower part, and the lower part is used to support the upper part, so that the situations reflect each other and there is no backdraft.
　　 When writing, it is advisable to review left and right, so as not to expose the program alone.
　　 Hidden front, point out the traces of entry and exit. If you want to go left, go right first, and then return to the left.
　　 The tip of the pen is hidden, and the round pen belongs to the paper, so that the center of the pen can always move in the dot painting.
　　 Protect the tail, draw a few points to use up all the potential, and use all your strength to close it.
　　 The disease comes from the pecking, and also from the vertical pen and the tight waist.
　　 The purpose of using the brush is to use it sharply and sharply.
　　 The astringency lies in the method of fighting closely.
　　 Horizontal scales, vertical strangles.
　　 This is called the Nine Movements. Even if you don't have a teacher to teach you, it can still be in harmony with the ancients. It requires a lot of calligraphy and ink skills to create a wonderful scene.
[Comment] There is a difference between gestures and brushwork. The strokes refer to a single line rule, which means that different dots and strokes must be done in different ways; the stroke rules are the basic methods that must be followed together, and no dots and strokes can violate it. The so-called "nine postures" refer to the nine methods and rules of strokes. As long as calligraphers master the correct methods and practice diligently, they can achieve the "wonderful state" of calligraphy even without the guidance of a famous teacher.

Introduction to Cai Yong