Fear.

What is fear? Everybody know the feeling when you want to do something or say something, but you're to afraid of failing or being rejected. Weird. How come we feel fear? And what happens when we stop being afraid? If we are not afraid, do we lose all our feelings? Because fear is the feeling we feel the most and of we stop being afraid there are only the other feelings and if we can resist the strongest of them, we will be able to stop feel anything. Really weird to be honest. But what happens when we overcome our fears? Will anything change, or we will fail or get rejected and feel the same we did before? Will the fear grow then? Help me out on this one.