Divisive effects of racism
Money rather than violence is the obvious lever that Lindner uses when he visits the family to ask them to stay away from his neighborhood, but the threat of violence is apparent in his speech and in the newspaper reports. The enforcement of segregation may appear to be less threatening on the surface when compared to what Mama has escaped from, but the menace is described as still being in place. Thinking big/Having aspirations
The hope to escape poverty is only given concrete assistance by the death of the father, but when most of this money is stolen the family comes together in a show of unity. It is as though the play argues finally that just by having the dream one will become a success as hope has triumphed over adversity.
A Raisin in the Sun: Theme Analysis