倾古城挽旧梦
[qīng gŭ chéng wăn jiù mèng]
'Qing Gu Cheng Wan Jiu Meng' can be interpreted as 'Leaning against the Ancient City, Yearning for Old Dreams.' It speaks to someone who has deep nostalgia, reminiscing about old times and past dreams, standing beside ancient walls that carry stories within them.