The human mind is a great weapon in the hand of God and Satan. Satan manipulate it to make a man instrument in his hand, he uses a lot of forces to hijack it. Part of the Warfare believers engaged in is the Warfare of the Mind, and to Wrestle against the forces of the Mind, believers must approach it spiritually. To conquer the forces that Wrestle against the mind, it must be the one that is empowered by God from the spiritual realm.
The Bible warns us to be Sober and Vigilant, so as to be able to Stand Against our adversary, the Devil. We Stand against the Devil in spiritual Warfare. We legislate and Establish the Kingdom of God in our sphere.