海枯石烂人莫离
[hăi kū shí làn rén mò lí]
These words roughly mean that love or friendship will remain strong until the seas run dry and the stones decay. It conveys an everlasting wish for fidelity in relationships. In a broad sense, it symbolizes unwavering determination or promises, emphasizing the longevity and constancy in affection or commitments, deriving from the classical notion that true feelings last forever despite adversities.