What is one possible theme of a raisin in the sun?

One possible theme of a raisin in the sun is that people often become frustrated after experiencing injustice.

A Raisin in the Sun is a play by Lorraine Hansberry. The story deals with a black family's experiences in "Clybourne Park", a version of the Washington Park Subdivision of Chicago's Woodlawn neighborhood, as they seek to enhance their financial circumstances with an insurance payout after the passing of the father.

an great real life example for the lottery principle is the real life lottery itself. it adheres to the lottery principle so much it's even called lottery. you apply for the lottery in the manner of getting a ticket and if you are lucky, the goods are distributed to you, in this case, the huge amounts of money. there are other real life example but this is the best one.