Final answer:
The line from "A Hymn to the Evening" that contains a metaphor is "And draws the sable curtains of the night".
Step-by-step explanation:
The line from "A Hymn to the Evening" that contains a metaphor is:
"And draws the sable curtains of the night"
In this line, the poet uses the metaphor of "sable curtains" to describe the darkness of the night. The word "sable" is used to convey the image of blackness, emphasizing the transition from day to night.
Learn more about Metaphors in poetry