The book ends with the narrator, Yunior, hoping that Isis (Oscar's niece) will grow up and start asking questions about her family, shining light in every dark corner. He says, "if she's smart and as brave as I'm expecting she'll be, she'll take all we've done and all we've learned...
The book ends with the narrator, Yunior, hoping that Isis (Oscar's niece) will grow up and start asking questions about her family, shining light in every dark corner. He says, "if she's smart and as brave as I'm expecting she'll be, she'll take all we've done and all we've learned and add her own insights and she'll put an end to it [the fukú]" (331). So, in a way, just telling the story of Oscar's family is Yunior attempting on some level to control how they are presented in order to eventually defeat their fukú.
During the height of a terrifying regime, Abelard, Oscar's grandfather and a wealthy doctor, controls his personality by forcing himself to hide. He does not allow his daughters to be too pretty or noticeable, and he does not ask questions of the injured who come to his door asking for help. Keeping his head down and doing the bare social minimum required of his family is how Abelard keeps himself and his daughters safe. For a while, it works, and Abelard is able to escape the destructive power of fukú.
Beli attempts to control her rebellious spirit and obey La Inca to stay away from the forces of fukú. Her parents were bourgeoisie, and although her spirit chafes at the boarding school where she is taunted for her dark skin, she tries to fit in to the stereotype so she can escape poverty and the fate that led to her father's imprisonment and her mother's death. La Inca cannot allow the fukú that orphaned Beli to follow her for her entire life, so in a way, it is Beli's control of herself and La Inca's dominating hand that controls Beli's personality enough to get her out of the Dominican Republic.
Ironically enough, Beli ends up with a daughter with an even more rebellious spirit than her own. Lola's alternative style and eventual runaway status can be read as attempts to control her identity against the power of fukú by becoming more American than Dominican, erasing the part of her that is controlled by old and evil spirits.