变成回忆后我还在这里化成回忆后你去了哪里
[biàn chéng huí yì hòu wŏ hái zài zhè lĭ huà chéng huí yì hòu nĭ qù le nă lĭ]
This poetic sentence translates to something like, 'After turning into memories, I'm still here; after becoming memories, where have you gone?' It speaks about longing, separation, and unresolved emotions towards a parting that can't be physically bridged anymore.