你若不离不弃我便以死相依
[nĭ ruò bù lí bù qì wŏ biàn yĭ sĭ xiāng yī]
'If you do not abandon or betray me, I will cling to you even to die.' A vow of unwavering devotion, where one expresses an unbreakable commitment and promises loyalty, no matter what, up until death. Such intensity in expressing fidelity emphasizes the depth of commitment to each other under any circumstances.