北城故人南街旧巷
[bĕi chéng gù rén nán jiē jiù xiàng]
'Beicheng Guren Nanjie Jiuxiang', translated as 'Old Friends in North City, Old Lane in South Street', evokes the imagery of nostalgia and memory. It refers back to times, events, and people in one's past - possibly during adolescence or early youth. People use it if they miss the past very much, including both things and people.