In A Course in Miracles, Jesus makes it clear that the ego mind is always defending against the truth, and that our defenses are like little "magic wands" we wave when the truth begins to threaten our sense of individuality. These defenses are always pointing the finger outside of our mind for the cause of sickness and pain, as if the images of the world are to blame. Yet the truth is that the world exists only as thoughts in your mind, and so mind-training leads to the realization that, as Lesson 281 says, "I can be hurt by . . .