深海爱人不及他梦中情人不是她
[shēn hăi ài rén bù jí tā mèng zhōng qíng rén bù shì tā]
Translates into an expression about lost or unattained love where a lover submerged deeply (perhaps spiritually) cannot compare with another admired from afar or dreamed about ('dream lover'), indicating disappointment or a yearning for ideal love compared to accessible reality, highlighting the contrast between real relationships and unrequited or imagined love.