" Therefore, when Ziqi died, Boya, realizing that no one else would understand his music as well as his friend, smashed his qin at Ziqi’s grave and sighed, “Why play the qin when there’s no more zhiyin to understand my music!” From then on, the term zhiyin had been used to describe soul mates. “Precious Orchid,” Qing Zhen looked at me intently while a solitary bird soared behind him in the vast sky, “you realize how lucky we are? Most people search all their life for a zhiyin but never find one. We’re not only lovers; we’re also zhiyin.” Though I was used to compliments from men and usually did not take them seriously, this one from Qing Zhen touched a silk string in my heart. "

― Mingmei Yip , Peach Blossom Pavillion