From Jesus in ACIM WB lesson 24:

“In no situation that arises do you realize the outcome that would make you happy. Therefore, you have no guide to appropriate action, and no way of judging the result. What you do is determined by your perception of the situation, and that perception is wrong. It is inevitable, then, that you will not serve your own best interests. Yet they are your only goal in any situation which is correctly perceived. Otherwise, you will not recognize what they are. If you realized that you do not perceive your own best interests, you could be taught what they are. But in the presence of your conviction that you do know what they are, you cannot learn. The idea for today is a step toward opening your mind so that learning can begin. W-24.1:1-2:3