Is there any allusion to the Emperor’s Crying Cuckoo?

From "The Book of Birds? Dujuan" "The right name of Shu is called Du Yu". Zhanghua of Jin Dynasty quoted Han Li Ying's "Zhi of Shu" and said: Emperor Wang proclaimed himself king in Shu and found the turtle spirit of Jingzhou people, so he became the prime minister. . A few years later, Emperor Wang, because of his high merit, took his Zen position in Bieling, and named him Kaiming clan. Wang Di practiced Taoism and hid in the western mountains. It turned into a cuckoo bird, or a cloud-flowered cuckoo bird, also known as a Zigui bird. In spring, it crows, which makes those who hear it feel sad.

Wangdi, the title of Shu King Du Yu in ancient mythology. He abdicated to his ministers due to floods, and lived in seclusion in the mountains. After his death, he turned into a cuckoo, crying day and night, and did not stop until blood flowed. Everyone who heard it felt desolate and sad. Extended information

Several works of later generations have used this allusion.

Guan Hanqing of the Yuan Dynasty once quoted this allusion in "The Injustice of Dou E": "If there are not some spiritual saints to pass on to the world, it is not necessarily a clear sky. I don't want half a star of blood to be spilled in the red dust, all of it is just in the world. The eight-foot flag and spear hang in plain sight. When he looks around, this is our Chang Hong turning green, watching the emperor crow." "Jin Se" by Li Shangyin of the Tang Dynasty: "Zhuang Sheng dreamed of butterflies and looked at them. "The emperor's spring heart rests on the cuckoo."

It is mostly used to express one's grievances or the failure to realize one's ideals and ambitions.

Baidu Encyclopedia-Looking at the Emperor and Crying the Cuckoo