Battle for the Mind As we have repeatedly mentioned, the real battleground is the mind, the imagination, the fantasy realm. The Scriptures are clear that immorality is first committed in the mind, the imagination, the fantasy realm, before it is committed with the body. In the Sermon on the Mount, Jesus taught: You have heard that it was said, “You shall not commit adultery”; but I say to you, that everyone who looks on a woman to lust for her has committed adultery with her already in his heart.