Explanations in Shen Yinmo's "Calligraphy Treatise Collection·Experiences of Learning Calligraphy by Famous Masters of Past Dynasties (2) Cai Yong's "Nine Movements" of the Later Han Dynasty: "The shape of the characters is formed by the strokes of the brush and the line of ink. Because of the shape of the characters The situation is not only a physical requirement, but also a lively and lively mental attitude, so it is said here that hiding the head and guarding the tail means that when using this pen, you must go against the trend. If it goes smoothly. If you drag, you won't be able to use your strength. If you go against others and draw back, you can leave your strength on the paper, and the words will feel powerful. Only in this way can the lively spirit be revealed. Therefore, the ancients always used the power of the pen when commenting on Dharma books. Wei She of the Tang Dynasty saw Huai Su's extraordinary cursive writing skills and knew that he would achieve great things. Where did this writing power come from? Just look at what Mrs. Wei said about dots, strokes, waves and strokes. , bending, all must be sent with all the strength, you can understand that this force is the force of the person writing. How can the force of the body be transferred to the words on the paper through the pen? The key lies in this. The way to use this pen is that the ancients worked hard all their lives and accumulated a set of experience, which is to hold the palm upright, the palm upright, the wrist flat, and the wrist and elbow together, and use the pen with the shoulder relaxed. , then the whole body's energy can be exerted, the writing and hand should be flexible and consistent, and the weight and weight can be adjusted freely without any inappropriateness. The whole body's energy can be concentrated naturally, and the words will naturally be powerful. Guan Jian.