梦终醒人已散
[mèng zhōng xĭng rén yĭ sàn]
'When Dreams Fade People Are Gone'. Dream often symbolizes hopes and beautiful moments while fading and dispersing refer to the end of these things. In this sense, the ID indicates that once time passes, everything changes and some people may disappear from one's life forever - it conveys melancholy at how fleeting relationships can be.