What does it mean if the lottery draws "every tree in Hanyang becomes clear, and Nautilus Island is a nest of herbs"?

The immortal of the past has flown away with the Yellow Crane, leaving only an empty Yellow Crane Tower here; The yellow crane never revisited earth, I saw a thousand years of white clouds; Hanyang trees are clearly visible in the sun, and Nautilus Island is covered with green grass. It is getting late. Looking into the distance, where is my hometown?