空人空心空世界旧人旧事旧时光
[kōng rén kōng xīn kōng shì jiè jiù rén jiù shì jiù shí guāng]
The user expresses an inner void and a nostalgia for the past. They might feel disconnected from the present, yearning for people, events, and time gone by, symbolizing emptiness yet holding on to old memories.