山无棱天地合才不撕存
[shān wú léng tiān dì hé cái bù sī cún]
Inspired by ancient vows of unbreakable love and devotion (literally translating to 'only if the hills crumble and earth meld with sky would it no longer exist'). The phrase represents an unwavering commitment and endurance of love against time and all odds, almost to the level of mythical impossibilities.