Joe ends up killing his mother, Nunu, because he believes that she is possessed. He later realizes that his action was demoralizing and that he had no reason to forgive himself. After Nunu's death, some believe that she was metaphorically able to return home on the wings of a bird, meaning that her deep desire to return to Africa was finally fulfilled.
Joe kills his mother, Nunu, believing she is possessed. Later, he regrets his actions and feels remorseful. After her death, some believe that she was able to return home metaphorically through a bird, fulfilling her desire to go back to Africa.