我愿久居深海然后溺水身亡
[wŏ yuàn jiŭ jū shēn hăi rán hòu nì shuĭ shēn wáng]
This expresses a deep sense of melancholy or escapism where someone wishes to retreat into the deep ocean and remain there until they drown. This can indicate extreme feelings of loneliness or desire to escape reality.