1, beautiful material. The material is "Four Treasures of the Study", but there is an evolution process, such as "paper", from bones, stones, bamboo slips, silks and rice paper. The beauty of calligraphy didn't appear until Xuan paper, because of the infiltration characteristics of Xuan paper, "it can sensitively show the instantaneous transformation of lines' brightness, dryness, brightness and thickness".
2. Beautiful lines. Calligraphy is an art that combines time and space. "Space" refers to the structural pattern of Chinese characters (square characters with proportional lines), and time refers to the writing pattern of Party members (with sequential rhythm). "Space beauty" refers to the beauty of lines. The beauty of lines is the soul and core of calligraphy, which is embodied in three aspects: three-dimensional sense, sense of strength and sense of rhythm.
3. Beautiful artistic conception. It is manifested in three aspects: poetry (reader), painting (work) and spirit (author). It does not include syntactic beauty.