Ephesians 6:12 says, "For our struggle is not against flesh and blood, but against the rulers, against the authorities, against the powers of this dark world and against the spiritual forces of evil in the heavenly realms." The battle of the heart and mind is a spiritual battle, and Satan is at work trying to build strongholds in your life that will keep you from Christ. You must find out how to identify and overcome those strongholds.