Bai Juyi's Song of Eternal Sorrow: "On the seventh day of July, in the Palace of Eternal Life, we secretly told each other in the quiet midnight world. We hope to fly in heaven, two birds grow together on the earth with the same wing, two branches of a tree ... "
Related allusions:
Legend has it that in old China, King Kang of Song married Han Ping, an official, and imprisoned Han Ping. Han committed suicide and his wife's clothes were rotten. When she went on stage to play with King Kang, she threw herself under the stage and everyone pulled his clothes. As a result, she fell to her death, leaving a suicide note saying that Han Ping was buried together, but Kang Wang buried them in two places.
Soon, a catalpa tree was born on each of the two graves, and it grew very thick in ten days. The roots and branches of two trees are intertwined, and there is a pair of mandarin ducks on the tree, groaning at each other. Bai Juyi's Song of Eternal Sorrow: "On the seventh day of July, in the Palace of Eternal Life, we secretly told each other in the quiet midnight world. We hope to fly in heaven, two birds grow together on the earth with the same wing, two branches of a tree ... "With these sentences, it is no wonder that people call marriage" tying the knot ".