What is the metaphor of looking at the end of the world

the metaphor of "looking to the end of the world" is based on the boundless feeling of looking high, but also the emptiness and disappointment of not thinking. It's from "Butterfly Lovers, Silks, Chrysanthemums, Tears and Dews", which is the work of Yan Shu, a poet in the Song Dynasty. This poem, written in late autumn, is one of the famous works of Song Ci and one of Yan Shu's representative works.

Original text:

The threshold chrysanthemum is sad, the smoke orchid is weeping, the curtain is light and cold, and the swallows fly away. The bright moon doesn't know how to leave and hate bitterness, and the oblique light goes through Zhuhu.

last night, the west wind withered the green trees, and I climbed the tall building alone, looking all over the world. Want to send colored stationery and ruler. Where do you know when mountains are long and waters are vast?

The first film describes the scenery in the garden, and uses empathy to inject the feelings of the protagonist and point out the hatred; The next film comes from hatred, and vividly shows the protagonist's eager expression through the high-rise building, which contains sadness. The whole poem is profound and profound, broad and lofty, implicit in deep and profound, and connotative in broad and far, which well expresses the theme of parting from sorrow and not hating.