你虽未冬却暖人心
[nĭ suī wèi dōng què nuăn rén xīn]
'Even Though Winter Didn't Come Yet, You Warm Hearts.' Here, it's used to illustrate that while winter, usually symbolizing coldness, hasn't come yet, but the warmth provided by you makes people feel warm. It means someone brings inner warmth even though external circumstances aren't harsh yet.