愿我是太阳暖你整个冬季
[yuàn wŏ shì tài yáng nuăn nĭ zhĕng gè dōng jì]
Means 'I wish I were the sun warming your whole winter.' It expresses deep affection and care where the user hopes to be a source of warmth and support for someone they love through difficult times or situations metaphorically described as a cold winter.