It is both poignant and powerful. It asks more questions than it answers, leaving the answers for its readers to supply. Through our own journeyings and experiences. The answers won't be handed to us in a nicely gift-wrapped package. It has been written that those who write about what they think truly come to know those things.
Card knows humanity.
He knows good and he knows evil. Over the course of the Tales of Alvin Maker he has planted many seeds and nourished them with good words. Now they're beginning to bear fruit. A fruit that is both delicious and desirable. Those who eat Card's fruit end up wiser and more aware of their humanity and the humanity of those around them.