In ancient times, people regarded jade as a token of mutual affection and emotion between lovers. In the Book of Songs, Wei Wind • Mu Gua: "You give me a peach, I return with a beautiful jade, not just for return, but for everlasting friendship." In the Book of Songs, Zheng Wind • The Woman Says the Rooster Crows: "Knowing your coming, I give you miscellaneous jade; knowing your compliance, I ask you with miscellaneous jade; knowing your love, I report you with miscellaneous jade." Qiong, Ju, and miscellaneous jade are all ornaments made of fine jade, which are used by lovers to give each other.