Hughes uses similes and metaphors--figures of speech--to portray that often times their dreams never came true. He asks if they "dry up like a raisin in the sun," if they "fester like a sore," if they "stink like rotten meat," or if they "crust and sugar over like a syrupy sweet." All of these statements are examples of similes. Even though he is using similes as comparisons, he is actually asking what happens to a "dream deferred."
Hughes uses similes and metaphors--figures of speech--to portray that often times their dreams never came true. He asks if they "dry up like a raisin in the sun," if they "fester like a sore," if they "stink like rotten meat," or if they "crust and sugar over like a syrupy sweet." All of these statements are examples of similes. Even though he is using similes as comparisons, he is actually asking what happens to a "dream deferred."