The first element-rhyme: rhyme means "rhyme". Rhyme is the first element and the most basic form of poetry. Classical poetry emphasizes rhyme. Poetry without rhyme is not China's poetry. It can be called "prose poetry", "free poetry" and "modern poetry".
The purpose of rhyming is to make readers catchy and easy to remember, which conforms to the traditional habits of China people. People usually say that a poem is full of charm, which means rhyme and poetry. What is rhyme? Simply put, the rhyme of the last sentence and the next sentence is the same.
For example, there is such bright light at the foot of my bed. Could it have been frosted? (Li Bai). "Light" and "frost" both belong to "Ang" rhyme, even if they rhyme; Another example is "I woke up easily in this spring morning, and birds were singing everywhere" (Meng Haoran). "Xiao" and "bird" belong to "concave" rhyme, which is also rhyme. But poems are usually more than four sentences, so there are the third sentence, the fourth sentence and the fifth sentence ... Do you want to rhyme? It depends on the genre of poetry. If it is ancient prose, rhyming is much more free. You can bet every other sentence, you can bet the whole article, and you can change the rhyme halfway. In short, whether you bet on the whole rhyme or change the rhyme, you must bet on the same rhyme. If you bet the wrong rhyme, the poem will be problematic and uncomfortable to recite.