奈何桥上我哭了三生石畔你笑了
[nài hé qiáo shàng wŏ kū le sān shēng shí pàn nĭ xiào le]
The 'Naihe Bridge' and 'Three-life Stone' are important concepts in ancient Chinese mythology, related to the boundary between the living and dead, implying multiple lifetimes of destiny between two souls. Crying on Naihe Bridge while the person smiles by the stone symbolically portrays the contrasting emotions between lovers after a painful separation, with one regretful (crying) and another seeming serene (smiling). It suggests sorrow over unrequited love.