顾北清歌寒知南温茶暖
[gù bĕi qīng gē hán zhī nán wēn chá nuăn]
'Gubei Qīnggē Hán Zhī Nán Wēn Chá Nuǎn' poetically means that one is reminded by the cold of someone far in the north through a pure and clear song, while warm tea indicates the remembrance of a warmer place or loved one in the south. It expresses contrasts in emotions and locations evoking deep sentiment.