旧城旧事旧人梦旧城旧事旧时光
[jiù chéng jiù shì jiù rén mèng jiù chéng jiù shì jiù shí guāng]
It emphasizes nostalgia by referring to 'old city, old memories, old person dreams of old city, old times', suggesting that someone often recalls or misses their former life and loved ones, maybe including those good-old-days feelings and events.