塞北冬雪凉江南秋雨冷
[sài bĕi dōng xuĕ liáng jiāng nán qiū yŭ lĕng]
This phrase evokes images of different climatic conditions in various regions of China. Specifically, it mentions winter snow in the northern desert region (typically cold and harsh winters) versus autumn rain in the southern areas of Jiangnan (which generally has more mild weather). This contrast might reflect longing or missing someone or something associated with those places