忆一窗似水流年
[yì yī chuāng sì shuĭ liú nián]
Literally, '忆' (yi) means recalling or reminiscing. '似水流年' (si shui liu nian) is an idiom meaning years passing by like water, representing the feeling of looking back at one’s life through the small window of memories, cherishing every bit of precious moments that have flown by just like running water never returns.