故人酒旧人醉
[gù rén jiŭ jiù rén zuì]
'Gùrén jiǔ jiùrén zuì' means 'Old friends become intoxicated from old wine'. This saying expresses nostalgia: although the old friends are the same, there are changes over time and place, symbolizing reunion, intoxication of reminiscence, etc., implying some kind of emotion triggered by recalling the past and cherishing old times