"Fresh as a rose in June,..."
See in text (Strange fits of passion have I known)
This line nods to the tradition of courtly love poetry. In this style, poets often perform what is called the “blazon,” a method of applying enthusiastic metaphors to the love object. As the poem progresses, it becomes clear how out of place the “rose in June” is.
"—Fair, as a star when only one
Is shining in the sky...."
See in text (She dwelt among the untrodden ways)
The poet compares Lucy to a star, and not just any star. He states that she is as beautiful as a solitary star in the sky. He is telling the reader that Lucy is uncommonly beautiful. The image of the single star also represents Lucy’s role as a muse. Just as sailors would navigate according to the North Star, the speaker looks to Lucy for inspiration and direction.