Knowledge Through Faith

There are several principles in the Bible that are underlying (as opposed to being openly stated.) One of these I call the principle of "knowledge through faith." Here's the idea: There are things that we know because we can see them, feel them, taste them, hear them or smell them--we've physically or emotionally or mentally experienced them on some way. Then there are things that we know without any metaphysical evidence--we're so convinced of their existance, that our faith in them becomes, in our minds, knowledge.
For example: I know there's a God. Do I have physical evidence of God's existance? No. I cannot experience Him with my five senses; He's not an emotion; He's not a condition or state of the mind. I have no reason to say that I know there's a God. Yet my faith in Him is so strong that I can say without hesitation I know there is a God.
What does this mean? Psychologically this concept is immence; we could discuss it for hours--and probably be no closer to expaining or understanding it. But as for how it affects us, it can be boiled down to this: my faith is mine alone. I cannot transfer it to any other person. But I can hold to it as fact, live in its light, and hope and pray that someday my faith will bring light to those around me.