What is the moral of ancient cuckoo?

In the traditional culture of China, it has rich meanings. At the same time, azalea can also refer to a kind of flower, also called azalea, commonly known as azalea. Therefore, when the flowers bloom, it is the season when azaleas sing, and the color of azaleas is about to drop, so people naturally associate azaleas "flowers" with azaleas "birds". There is an old legend: the cuckoo "bird" sounds like "it is better to go home", and when it sings, it drops blood. The blood drops are red, and this flower becomes a "azalea". "Shu soul drops blood first, so it should only drop more than this cluster." Han He, a poet in the Tang Dynasty, sang this tragic legend. Cheng, a poet in the Tang Dynasty, wrote: "cuckoo, what is the merit of resentment?" It is suspected that it is the blood in the mouth, which drips on the branches and becomes flowers. " The close relationship between cuckoo and azalea is also described. Because of this close relationship, poets naturally associate it with comparison in their poems, or from comparison to this point. For example, Li Bai's "Xuancheng still sees azaleas": "Shu once heard birds, and Xuancheng also saw azaleas. One is called, one is ileum, one is broken, and there are three buses in March and March. " The author of this poem once saw azaleas in Xuancheng and was moved by the scenery. He thought of the common cuckoo in Sichuan, which evoked his memories and attachment to his hometown in central Sichuan. Another example is Yang Wanli's "Little Du Xing Fu": "Why do you cry and cry red? When you open it, it leans towards the cuckoo's voice. How much blood can a cuckoo have, not a tear. " The poet thought of cuckoo from azaleas, and then thought of the pain of travelers and the feelings of worrying about the country and the people, which was touching. "Flower" and "bird" have the same name, which can arouse readers' similar literary imagination in the process of cultural inheritance. The literary image of "cuckoo" is really of great significance.