According to the data of the ancient poetry network, Song of Eternal Sorrow is a long narrative poem by Bai Juyi, a poet in the Tang Dynasty, with a full text of 840 words. This poem is based on the love story between Emperor Xuanzong of the Tang Dynasty and Yang Guifei. Because it was a tragic ending, it was named Song of Eternal Sorrow. First of all, "Song of Eternal Sorrow" gives us the enjoyment of artistic beauty, a moving story in the poem and a delicate and unique artistic conception.