握不住的沙就扬了它留不住的人就放了他
[wò bù zhù de shā jiù yáng le tā liú bù zhù de rén jiù fàng le tā]
If sand can’t be held, let it go; if a person can’t stay, let them go. This reflects acceptance and the wisdom of letting go, suggesting that forcing things to remain will only lead to frustration and pain.