Buddhist Philosophy 1.10.1
Suppose you can understand that there is no "self." How does that help you stop your bad emotions, and reach freedom? (Tibetan track students give words for "bad thoughts" and for "object to be denied.") Suppose that your boss yells at you at work. If you understand that no self exists, you understand that this unpleasant experience is not coming from its own side. Rather, he is like an empty screen, and you are forced by your own past karma to see him as bad. Someone else in the room who has better karma may be seeing this as a pleasant experience; for example, thinking that the boss is kindly correcting an employee to help them improve. When you realize this fact, you realize that—if you yell back at the boss—you will make new bad karma that will make you see him yelling again in the future. Being an educated Buddhist, you realize that the best course of action is to respond kindly and patiently. If you keep up this way of behaving, you will fairly quickly reach nirvana.