落花落雨不及落泪殇心
[luò huā luò yŭ bù jí luò lèi shāng xīn]
"Falling Flowers And Rain Do Not Match Shed Tears Searing The Heart" paints a poetic picture of profound sorrow or sadness, comparing natural occurrences (flowers falling, rain) unfavorably against heartfelt weeping from deep pain or grief.