Those who know God in their hearts also know that there is a dimension to existence that cannot be rationally expressed. There is a knowing that cannot be defined by words. A truth to every experience that is undeniably self evident; a consciousness in the world that pervades and connects everything.
Why are some blind, and why do some see? What stops a person from fully submitting to the experience of God? And what makes a prophet -- simply one who is overly moved by the Spirit, or is there more, is there a greater level of spiritual knowing than what is evident in the lives of so many believers?
There is a difference between belief and knowing.
There is a difference between analyzing and accepting.
The mind is our greatest tool, and our greatest deceiver. It is not by our thoughts that we come to know God, but through our actions. If we could know God by thought alone, it would imply that God exists in our thoughts alone. But that is not true. God exists far less in our minds, and far more in our physical reality, but we do not see it because we are too limited. We are trapped by our concept of man as "master of nature," but man is master of nothing. Man is blind. Seeing God requires that we look past what our minds perceive, and experience God's presence in the deepest chambers of ourselves.