从天光乍破到暮雪白头
[cóng tiān guāng zhà pò dào mù xuĕ bái tóu]
It translates to 'from dawn till sunset snow white your hair'. This expresses a deep romantic desire: together through every moment, from morning till old age marked by white hair due to winter (暮雪 also evokes images of late-life beauty under white snow). It reflects a longing for a timeless, lasting relationship.