你似深海蓝透我心
[nĭ sì shēn hăi lán tòu wŏ xīn]
By comparing a beloved person with the sea color-blue-it signifies depth, breadth, peace and tranquility, etc. This implies she has an indelible presence in her mind and heart; the blue also refers to his influence is so intense and pervasive, just like deep water dyeing people entirely blue.