但愿风如故只是故人离
[dàn yuàn fēng rú gù zhĭ shì gù rén lí]
A somewhat poetic line that translates into 'Wishing the wind were the same, alas only old friends depart'. This reflects nostalgia for good old times with close ones who have left, possibly moved away or died. It's a sad reminder of inevitable changes and losses in life.