Final answer:
The simile in the poem 'Days' compares the passage of time to rivers and birdsong, emphasizing the transience and beauty of life. This comparison highlights the theme of time passing and its connection to the natural world.
Step-by-step explanation:
The simile in lines 14-16 of the poem 'Days' compares the passage of time to 'shallow rivers, to whose falls/Melodious birds sing madrigals.' These lines suggest that time flows swiftly and melodiously, like a river, and that it is accompanied by the beauty of birdsong. Other words and phrases in the poem that relate to this simile include 'streams,' 'liquid clocks,' and 'persistent clocks.' These words emphasize the theme of time passing and its connection to the natural world.
This comparison has an impact on the poem's overall meaning by highlighting the transience and beauty of life. It suggests that just as rivers flow and birds sing, time moves on and brings changes. The imagery of the simile evokes a sense of fleeting and precious moments. The poem encourages readers to appreciate the present and find joy in the passing of time.
One example of evidence to support this interpretation is the phrase 'time sings thro' hours' in line 23. This phrase reinforces the idea that time is accompanied by a melodic and rhythmic quality, similar to the singing of birds in the simile.