Answer:
1. I think that Langston uses these metaphors to describe his life when he is unable to achieve the dreams he earnestly desires.
2. Sometimes it takes metaphors to more accurately describe the barreness that comes from unfulfilled dreams than just stating things plainly (if that makes sense).
3. Using a metaphor is gives more literal meaning in a sense than similes, because similes are used to compare. Therefore, in this case, using similes would negate/weaken Hughes' poem.
4. It makes an excellent metaphor because it is clearly seen how Hughes feels with his unreached dreams, like a broken winged bird, like a barren land.
hope this helped!! :)
