花落彼岸花开不相见流水无意落泪不相知
[huā luò bĭ àn huā kāi bù xiāng jiàn liú shuĭ wú yì luò lèi bù xiāng zhī]
Drawing from Buddhist concepts, this indicates missing someone greatly yet accepting fate ('flowers bloom on opposite shores without meeting, water flows purposelessly while tears flow silently'). It depicts unrequited longing with a sense of resignation to destiny.