DH once told me that sometimes he learns something, and he has to get his heart to believe and feel it. Logically he knows it's true, but something refuses to allow him to accept it.
Other times he feels something with his heart, but the logical side of his brain doesn't accept it. It's like the facts don't support his belief.
I think this is the struggle of being a Christian. Sometimes you can read things in the Bible that make perfect sense, but since you don't have any personal experience with them, they don't affect you. Other times, you know something is true through faith, even if you have no actual evidence to support them. You struggle with this disconnect. Enlightenment, if you will, is bringing your brain and heart together.