laugh
Your dream teacher is the only person you can rely on. He helps you solve the problem. These things should only be in your dreams and have no effect on reality. But the emotions in your dreams represent your emotions. The evil in your dream is that you are afraid because you don't know how to deal with them. The dream is telling you, maybe you should break through these and tell your teacher all this in your dream. Maybe he will tell you the source of these evils in his dream.