将一首古诗翻译成英文并解释其内涵。
古诗《登高》：“风急天高猿啸哀，渚清沙白鸟飞回。无边落木萧萧下，不尽长江滚滚来。”
Translation: 

The Wind is fierce, the sky is high, and the monkeys howl in sorrow. The beach is clear, the sand is white, and the birds fly back. Endless trees fall with a rustling sound, and the rolling Yangtze River never stops flowing.

Meaning: 

The poet describes the scenery of a mountain top, with strong winds blowing, monkeys howling in lament, the clear beach, and white sand full of migratory birds. The endless falling trees and never-ending flowing river signify the impermanence of nature and the continuity of life. The poem expresses the poet's deep contemplation of the universe's eternal cycle and the beauty of nature's constant change.