I believe the question being asked here is "what happens to Kiswana's illusions in the novel?" Kiswana is one of the six women explored in The Women of Brewer Place, and she has a distinctive background and history which affects her view of the world. Kiswana has renamed herself, having been born Melanie Browne in a wealthy suburb called Linden Hills, which, while predominantly black, she does not feel was representative of the African American experience. Kiswana is young and idealistic, and she wishes to reinvent herself in order to better fit what she perceives the "black experience" to be. Consequently, she drops out of college and relocates to Brewster Place, hoping to drive a revolution. She rejects the class and culture she feels has been imposed upon her and dedicates herself to becoming "more black." Optimistically, she feels she can progress the African American cause by rejecting her privilege and inspiring a spirit of revolution among the residents of the less advantaged area.
Ultimately, however, Kiswana's illusions run headlong into harsh reality and are largely defeated by it. Kiswana is aware of the privileges she has enjoyed, but, at the same time, she fails to recognize quite how much the people of Brewer Place have suffered. She soon realizes how difficult it would be to push them to revolution. Revolution, Kiswana discovers, is easy for people who have already experienced a wonderful life, but the people she is trying to rally do not really believe they can ever have what she promises them. Their lives are hard and tiring; they feel, rightly, that Kiswana does not understand their struggles.