What are some metaphors found in Niagara Falls by Rupert Brooke?

In Rupert Brooke's poem "Niagara falls," the falls themselves serve as a metaphor for the overwhelming power and beauty of nature, symbolizing both awe and danger. The imagery of the rushing water reflects the tumultuous emotions and the transient nature of human life. Additionally, the juxtaposition of the falls with human experiences suggests themes of love, loss, and the inevitability of change. These metaphors collectively convey a sense of reverence for nature's grandeur while highlighting the fragility of existence.