What is the theme of the book "Beloved" by Toni Morrison?

The theme of the book beloved is "how women negotiate or mediate between their nurturing compulsion to love the other, the thing that's bigger or better than they are in their lives - husband, children, work - and the other part, which is the individual separate self that has separate obligations." That is a direct quote from Toni Morrison, so it can't get more correct than that.