Ling: Feathers.
Rush: twice, twice.
Wet phase is heavy: wet twice (rain is wet, water on the soil is wet. )
The feathers dropped by swallows skimming the water surface floated alone on the water surface, and the flowers that fell after being wet by rain fell on the wet soil and got wet twice.
This poem is an antithetical sentence, which is desolate and graceful in style. At the same time, it also shows Song Huizong's loneliness (cold rotation) and helplessness (heavy wet phase).
If we can find out the writing age of this cursive fan, we can better analyze Song Huizong's mood according to his situation at that time.