Whats the concept

The setting of the play is a run down apartment in Chicago during the 1950's. The long-standing appeal of A Raisin in the Sun lies in the fact that the family's dreams and aspirations for a better life are not confined to their race, but can be identified with by people of all backgrounds. Even though what that "better life" may look like is different for each character, the underlying motivation is universal. The central conflict of the play lies in Walter's notion of this American dream. Walter buys into the middle-class ideology of materialism.