Demons are nothing but bottom feeders of the astral world.
Here is the brutal truth about you, There exists an infinite ocean of thinking intelligent energy called the Quantum Ocean. Everything that is, was or will be exists in the Mind of God. You live and move and have your being within the Mind of God. In reality there is no Mind of God and You. There is only the Mind of God. Therefore, You are God = God is You. You can defeat billions of demons and dispose them to the Astral garbage can the moment you truly realize the war is between God and demons and there is no YOU!