Having seen the vast ocean, other water seems insignificant; used to describe a person so experienced or well-traveled that ordinary things seem unremarkable. From a Tang dynasty poem by [[元稹|元稹|yuan2 zhen3]]

Literally translated as "no water is wide enough after one has seen the great ocean, and no clouds compare to those over Mount Wu." This poetic expression describes having seen the best of something or having experienced a deep love, such that nothing else can ever compare or satisfy.