山长水远知何处当时轻别意中人
[shān zhăng shuĭ yuăn zhī hé chŭ dāng shí qīng bié yì zhōng rén]
Derived from a classic Chinese poem, this phrase laments separation. It speaks about missing someone deeply when the distance makes it difficult to meet. It conveys longing, sadness, and nostalgia for past romantic relationships.