太阳暖人不暖心月亮虽凉却寒心
[tài yáng nuăn rén bù nuăn xīn yuè liàng suī liáng què hán xīn]
Compares feelings towards the warmth given by the sun and coolness by the moon but implies that physical senses and true emotions may differ. The warmth of the sun cannot warm one's heart; however, the chilly moonlight resonates deeply with loneliness or sorrowful emotions. Reflects internal struggles against external impressions.