Flat head: the first and second words of a five-character poem must not be synchronized with the sixth and seventh words (at the same level, up, down and inside).
The last part: the fifth word of the five-character poem must not be synchronized with the cross (the rhyme can be ignored).
Bee waist: the second word of the five-character poem should not be synchronized with the fifth word. The word is thick at both ends and thin in the middle, like a bee's waist.
Crane Knee: The fifth word of a five-character poem must not be synchronized with the fifteenth word. The words are thin at both ends and thick in the middle, like the knees of a crane. According to Cai Kuanfu, the nearest neighbor thinks that the first word of five-character is voiced, the first word in the middle is voiced, such as bee waist, the first two words are voiced, and the first word in the middle is voiced, such as crane knee. )
Rhyme: Five-character poems use "new" as the rhyme, so it is not appropriate to add the words "people, Tianjin, neighbors, style and Chen" to the first nine words (that is, they contradict the rhyme).
Xiao Yun: Besides rhyming, five-character poems also overlap each other (that is, nine characters overlap each other).
Fat girl: Also known as "Moon" in the five sentences, so the words "Fish, Yuan, Ruan, Wish" and "Moon" should not be added.
Zhengniu: also known as calf, that is, taking Ren, Ren and Ru as a group, the word Ren is already in five words and one sentence, and the words Ren and Ru should not be placed in a more secure position, which leads to the disharmony of four tones.
2. At that time, the popular poetic style was mainly five words, so they were all five words.
3. The eight diseases mentioned in Wen Jing and Mi Fei are ancient terms about poetic temperament. This was put forward by Liang in the Southern Dynasties, and it is also a defect in the application of the four tones. It refers to eight disadvantages that should be avoided in poetry, namely, flat head, tail, bee waist, crane knee, big rhyme, small rhyme, side button and straight button. It is of positive significance to increase the aesthetic feeling of poetry art form and enhance the artistic effect of poetry, but it also brings some disadvantages.
This indicates that China's ancient poetry began to move from "archaic" poetry, the product of primitive natural art, to "modern poetry" of artificial art.