久溺深海终毁我梦

'Jiǔ nì shēn hǎi zhōng huǐ wǒ mèng' which roughly translates as 'Long immersion in deep sea finally destroys my dream'. In metaphor, it shows that excessive focus on certain things might end up causing destruction on another. This may indicate someone reflecting on lost idealism from immersing too deeply in some situations