孤城以北回首南城内旧人
[gū chéng yĭ bĕi huí shŏu nán chéng nèi jiù rén]
'North of the Solitary City, Looking Back at the Old Acquaintances in South City.' It describes feelings associated with recalling past relationships, experiences, or cherished individuals when far away, reflecting nostalgia mixed with melancholy.