Fear simply means to believe a lie. A lie opposes the truth. It is the absence of faith because faith and fear can't dwell in the same heart or spirit. When faith comes into your heart fear fades away. If somebody says, "I believe in God but I am afraid of demons or evil spirits, he or she isn't telling the truth because you can't have faith and fear at the same time. When you have faith in God you become bold like a lion. Fear is a spiritual force that the Devil uses to gain access to the lives of people. There is a simple rule in this world, whatever you fear is going to manifests in your life. For example, if you fear sickness it is going to manifest in your life, and so on.