A Raisin in the Sun: Act 3 - What is Asagai's dream? How does Beneatha feel about it?

In Act Three, Asagai dreams of returning to Africa. Meanwhile, Beneatha sneers at Asagai's 'talk and dreams about Africa' and how he thinks that he 'can patch up the world' and cure 'the Great Sore of Colonialism ... with the Penicillin of Independence

Explanation:

Asagai believes that all Africans belong in Africa; he asserts that they will never feel at home anywhere else. He proposes marriage to Beneatha and invites her to return with him, assuring her that, in time, they can pretend that she has only been away for a day.