旧人旧梦旧时光旧城旧事旧回忆
[jiù rén jiù mèng jiù shí guāng jiù chéng jiù shì jiù huí yì]
Expressing nostalgia towards everything old—people, dreams, eras, cities, events, memories—with six repeated character for 'old'. Indicates longing and yearning for the past.