You have been told not to make error real, and the way to do this is very simple. If you WANT to believe in error, you would HAVE to make it real, because it is not true. But TRUTH is real in its OWN right, and to believe in truth, YOU DO NOT HAVE TO DO ANYTHING. Understand that you do not respond to stimuli, but to STIMULI AS YOU INTERPRET THEM. Your interpretation thus becomes the JUSTIFICATION for the response. That is why analyzing the motives of others is hazardous to YOU. If you decide that someone is REALLY trying to attack you, or desert you or enslave you, you will respond as if he had actually DONE so, BECAUSE you have made his error REAL to you. To interpret error is to GIVE IT POWER, and, having done this, you WILL overlook truth.
The analysis of ego motivation is very complicated, very obscuring, and NEVER without the risk of your own ego involvement. The whole process represents a clear-cut attempt to demonstrate YOUR OWN ability to understand what you perceive. This is demonstrated by the fact that you REACT to your interpretations as if they WERE correct, and control your reactions behaviorally, BUT NOT EMOTIONALLY. This is quite evidently a mental split, in which you have attacked the integrity of your mind, and pitted one level within it against another.