Prince Chen's wife, Xu Deyan, was the sister of his master, Shu Bao, and was given the title of Princess Lechang. She was extremely talented and beautiful. At that time, Chen Zhengfang was in turmoil. De Yan knew that he could not protect her, so he said to his wife: "With your talent as a king, if the country is destroyed, you will definitely end up in a powerful family. Is this forever? The relationship has not been broken, and I still hope to see each other. It is better to trust her." After breaking the mirror, the man held half of it. The appointment said: "He will look at the sun in the first month and sell it to the city. I will visit him on this day." When Chen died, Guo entered the house of Yang Su, the Duke of Yue, and was favored by him. Deyan lived a hard life and could only go to Beijing. Look at the first month and visit the city. There is a Cangtou man who sells half-mirrors. The price is so high that everyone laughs at him. De Yan led him directly to his residence, explained his reasons specifically, took out a half-mirror to close it, and still wrote a poem: "The mirror is gone with the person, and the mirror returns to the person but never returns. There is no more shadow of Chang'e, only the bright moon shines." After the princess got the poem, she wept bitterly and refused to eat. The more the public knew about it, the more he changed his appearance, he summoned De to speak, and when he returned his wife, he still left her generously.
——Tang Mengqi's "Poetry·Emotion"