The African American Dream has been deferred in the poem "Deferred" along with the consequences of procrastinate them, thus the poem was made to help people live the lives they dream of having.
Langston Hughes was a black man during a time period in which African-Americans were considered an inferior group of people, and as a result dreams and goals would have been difficult to realize.
His "Dream Deferred" constitutes a man's expression of his dreams at that tough time.