拥有不如怀恋相见不如留恋
[yōng yŏu bù rú huái liàn xiāng jiàn bù rú liú liàn]
It reflects the philosophy of cherishing memories and emotions rather than possession. Meeting and interacting less can keep the beauty and mystery, instead of being too close leading to possible disappointment. The phrase is often used by those who feel the loss may preserve fond memories in a purer form