Why do many people say that the world is beautiful?

If a person has a good attitude, everything in the world will be beautiful. For example, I am very happy today and I am fully relaxed. When I walk on the road, I see the sun is shining, the blue sky is bluer, the air is fresh, and people in the street are very happy. In fact, I personally feel that the world is beautiful when I am happy. I'm not happy myself, and I feel very uncomfortable. Even the scenery and water can't be appreciated by you, and the delicacies are tasteless. Even if it is a bed of more than 10 thousand yuan, it is not good to lie down and have nightmares over and over again, and the mood is not good, and even the best things are not good. Actually, that's it. I'm in a good mood and everything is fine. Du Fu once said, "Where petals flow like tears, lonely birds sing their grief." How beautiful these flowers and birds are. Why are they crying and neurotic? Because "after three months of war, a letter from home is worth a ton of gold." In the case of war, family members don't know whether to live or die, and the fragrance of birds and flowers can only make them more sad. Bai Juyi once wrote in his poem: "It is sad to see the moon in the palace. He heard the bell in the late rain, cutting his chest." How beautiful the emperor's palace is, how beautiful the moon is, but it is a sad color; How beautiful the bell is, it is the sound of heartbroken. Why? Because Tang heard that Yang Guifei died, he missed Yang Guifei all day and was very painful. In this case, the moon in the palace is a sad thing. The bell sounds good, but it is a heartbroken sound. That is to say, my mentality is not good, and everything is gloomy. To maintain a happy attitude, we should keep in mind the "three pleasures": one is to help others, the other is to be content and enjoy ourselves. Why do you want to help others? The greatest happiness in life is to help others. The process of helping others, purifying the soul, subliming personality and taking pleasure in helping others is the greatest happiness in life. He said that some rich people often live in his ward, and he often advised them not to eat, drink and gamble if you are rich and content. If you eat, drink, gamble and get AIDS, you will die faster and there is no cure. If you have money, donate it to Project Hope. If you give money to poor areas, they will be happy, you will be happy, and the whole society will be fine. Some people say that I can't help others. I have no money. How can I help others? Look who is richer than me. He has a higher position. Don't compare like this, it will piss people off. He has more money than you, but he is more risky than you; His position is higher than yours, he is under great pressure, and things are split in two. So contentment is always happy. And enjoy it, that is, when you are unlucky, you must be happy. How can you be happy when you are unlucky? Life is the turning of the wind. It turns out that in this world, the moon is full of eyes and people have joys and sorrows. Ten years in the east and ten years in the west, no one is always lucky, and no one is always unlucky. Balzac once said, "Suffering is the best teacher in life." Your bad luck now means that the light is ahead, so you should enjoy it. Misfortune coexists, and suffering is the best teacher in life, so one should always be happy.