Li Bai's "Seeing Rhododendron in Xuancheng"
The Shu Kingdom once heard the bird Zigui, and saw the azalea again in Xuancheng.
One cry, one ileum, one break, three springs and three months, remembering Sanba.
Zigui's Crying Blood Canon from the "Historical Book: The Book of the King of Shu" states that after Emperor Wang ascended to the Zen throne, he transformed into a cuckoo, which crows in spring, and when it drops blood, it turns into a cuckoo. The call of a lover is often used to describe extreme grief. It is also said that the ancient Shu King Du Yu turned into a cuckoo after his death. Every spring, the cuckoo called people, and the cuckoo cried so much that it shed blood and dyed the cuckoos all over the mountain red. This is This is the origin of the idiom Zigui crying about blood.