你若是海我愿沉溺而亡你若是病我愿放弃治疗
[nĭ ruò shì hăi wŏ yuàn chén nì ér wáng nĭ ruò shì bìng wŏ yuàn fàng qì zhì liáo]
It translates roughly to saying: If you were the ocean, I'd willingly drown in you; if you were sickness, I would stop my treatment. It illustrates deep longing or affection, willing even for self-destructive behavior because of someone they love.