This sentence came from Zhang Ailing's novel," Red Rose and White Rose." In the novel, the relationship between the female protagonist Jiang Jialing and the male protagonist Zhang Wuji was described as "Zhusha Zhi" and "Bai Yueguang", describing their feelings as very deep but at the same time very complicated and difficult to part with. This sentence expressed Jiang Jialing's feelings for Zhang Wuji, but she couldn't completely possess him.