At the beginning of dusk, the sparse maple forest (falling frost leaves) touched the poet's homesickness; //As the twilight grows, the lonely city closes, the lonely bird returns to its nest, and the poet's loneliness becomes deeper and deeper; //As night falls, the moon rises, and the empty ferry makes the poet homesick: at this time, I don't know where the anvil slams the cold clothes, and the poet's homesickness is even stronger. //With the help of this series of homesick images, poems are constantly superimposed with the progress of time, thus gradually enriching homesickness.