Where are these strongholds? In 1970, cartoonist Walt Kelly famously made a poster with the slogan, “We have met the enemy, and he is us.” If we are unaware of the battle in the area of our mind, we will find it difficult to stand against our enemy. Be careful of your thought life. “Above all else, guard your heart, for everything you do flows from it” (Proverbs 4:23). Your heart, a picture of the central core of your inner life, your spirit, is guarded by your mind. Be careful of the images that Satan would like to sow into the good soil of your heart. Take captive every thought that arises in opposition to the truth of God’s Word.