Most of the things that really matter require faith. How do I know that my wife loves me? How do I know that Mozarts Jupiter Symphony is sublime and beautiful? There are all sorts of things which come at a more lowly level than that - How do I know that two plus two equals four? There are different layers, different types of knowing.
It was hard for me, as a father, to imagine going through what my birth mom went through, to raise a child inside of her for nine months, and then have to say goodbye. And so it's hard for me to understand that pain and that process.