What's the natural response when you've seen God? You're convicted of sin. "Woe is me, for I am undone." The closer I walk with God, the more quickly I feel my sin and realize how much I need God.
It's like a huge mirror with a great big light over it. When we stand away from the mirror, things look pretty good: suit looks in order; tie looks straight; the hair, what's left of it, is combed.
But as you begin to move towards the mirror, things begin to show up. The suit has a spot on it. The tie is a little bit wrinkled. The hair is out of place. The closer we get to the bright light, the more we realize our defects. It's the same way when we get close to God. When we get close to him, we realize how much we need him and how far we are from him. We're convicted of our sin.