暖树旧梦凉城深巷
[nuăn shù jiù mèng liáng chéng shēn xiàng]
It paints a vivid picture combining warmth from trees (暖树 nuǎn shù), the reminiscence over dreams past (旧梦 jiù mèng), cold walls of cities gone by (凉城 liáng chéng), deep narrow streets (深巷 shēn xiàng). This nickname evokes a poignant atmosphere full of nostalgic yearnings, blending elements of memory, nature, urban landscape, warmth, coolness into one rich description.