只愿牵一人守到死不分开只愿得一人心白首不分离
[zhĭ yuàn qiān yī rén shŏu dào sĭ bù fēn kāi zhĭ yuàn dé yī rén xīn bái shŏu bù fēn lí]
Expresses a deep commitment and desire for a lifelong relationship, emphasizing monogamy, loyalty, and the hope of staying together until death separates two hearts.