除非黄土白骨我守你到百岁无忧
[chú fēi huáng tŭ bái gú wŏ shŏu nĭ dào băi suì wú yōu]
Translating as 'Unless covered by yellow earth and turned into white bones, I will guard you till the end of time without worries'. It is a vow that shows an intense, undying loyalty and commitment towards one's partner, even through the afterlife.