Answer:
B. It emphasizes the dreamlike world of the speaker's imagination.
Explanation:
It would help to read the poem, but based simply on the word, I would say it is used either in a negative way or inspiring way.
If you could let me know what poem it is, I may be able to help better :-)
Where did the publisher get the story from? did they make it theirself? when did they publish it ? to what extent? and is this a reliable resource?