南柯故人一梦难忘
[nán kē gù rén yī mèng nán wàng]
'Nan Ke Gu Ren Yi Meng Nan Wang' references an ancient Chinese fable where 'a life of success was but a dream'. Here it means one cannot forget the dream-like past encounters with old loves - suggesting longing, memory, and the bittersweet reminiscence of lost love.