寻寻觅觅怀念于往反反复复沉沦于今
[xún xún mì mì huái niàn yú wăng făn făn fù fù chén lún yú jīn]
Translating to 'searching and searching for memories of the past, repeatedly falling into the present', it conveys the idea of yearning for the old days while feeling lost in current circumstances, emphasizing a feeling of reminiscence and confusion about life’s trajectory.