So we think that this poem is about how Langston Hughes had a dream to be able to bridge the gap between the racial divide and in many ways he did succeed in doing this but he also needed the support and assistance from the other black African Americans to be able to fully succeed in his dream he says this by saying to them that he needs help to shatter the darkness, so to fully accomplish his goal he needs the help from other African americans.
In the poem spring in New Hampshire Claude McKay describes the beauty of America and all of the things it has to offer. But in Let America be America Again Langston Hughes describes the things that America has done wrong and how it should stop descriminating.