The season finale of The Leftovers was poetic and simple and beautiful. I have not always loved certain elements of this show, namely the afterlife episodes, but I see now, after it's all over, what I think the creators and writers were trying to convey: that there are some things we just can't know, that we all are fighting ourselves internally to some extent, that conflicting and confusing and dueling desires rage within us all. That that is what it is to be human…