The state of mind is an elongated emotion. If you want to grasp the state of mind, you must grasp your emotion first. James said: "if you feel unhappy, then you have to find a way to be happy, that is to cheer up." Tension is a habit, and relaxation is also a habit. Excessive tension, restlessness, anxiety and tense and painful expression... This is a bad habit, a bad habit to the letter. Establishing and adjusting good habits is an important link in the cultivation of a happy life. We must be soberly aware of the role of mentality in determining our success in life: (1) Life treats you as you treat life. (2) Treat others as they treat you. (3) Your mindset at the beginning of a task determines how successful you will be in the end, which is more important than any other factor. (4) The higher the status of people in any important organization, the more they can find the best mentality. Your psychological, emotional and spiritual environment is completely created by your own mentality. A survey of 122 people who had suffered from a heart attack showed that some of them were optimistic and some were pessimistic. Eight years later, we found that 21 of the 25 pessimistic people died and 6 of the 25 optimistic people died. This conclusion should keep us optimistic. No matter how unfortunate you are, your life is still alive, isn't it? What's more? Keeping an optimistic and positive attitude can make happiness and life long. How can we choose a positive attitude? First, choose your goal, that is, find out what kind of results you need to achieve. Second, choose beliefs that can help achieve your goals. This is because the relationship between belief and attitude is cause and effect. Belief is cause and attitude is effect, that is, what kind of belief, what kind of attitude. Third, choose your goal, that is, the focus of attention. In other words, you should think actively and focus your attention on the goal you finally want to achieve. Don't put it where you don't want or can't get it. Fourth, imitate the attitude of winners. Making friends with winners and imitating their attitudes, beliefs, habits and strategies are the best strategies for rapid success. Today, what books you read and who you are with may decide what kind of person you will become in five years.