Read the following materials and write a composition as required.

Let happiness and pain make life face pain and trouble. I often stare blankly at the sky and wonder why there are so many hardships in life. How nice it is to be happy all the time. But when I came to my senses, I would immediately veto it and say to myself, "What are you afraid of a little pain?" How can you be happy without pain? The more you suffer, the more you will enjoy. "Life is bittersweet, and pain is like a cup of bitter tea, which we need to savor; Happiness is like a cup of fragrant tea, and we need to enjoy it heartily. A miserable and happy life is a gift from God. Learn to endure pain, enjoy happiness and play harmonious and beautiful music for life. In the face of pain, we should learn to be patient. Grass can stand the frozen land and the burning of fire before it waits for a new green in the coming year; Only when a tree can withstand the attack of wind and frost and the beating of lightning can it grow stronger and have the opportunity to enjoy the honor of "towering". A philosopher said well that only by enduring loneliness can we not be lonely. Indeed, only by enduring loneliness in pain can we walk through pain and usher in happiness. Pain needs patience, and patience needs us to find spiritual sustenance. During the Cultural Revolution, a musician was sent to a remote village. People are always worried about whether he can withstand the blow and adapt to the poor life, and people are even more worried about whether he will try to die. The dark ages passed, and when people went to the countryside to look for him, they saw an old man with a natural expression and a smile on his face. People looked at him in surprise. He said, "Actually, it's nothing. I just follow the beat of the music when I mow the grass every day. In fact, I like music every day, which makes me forget the pain. " Suddenly, people stood in awe of him. Musicians face pain directly and place their trust in music, which turns his pain into happiness. Imagine that if he had no music and just mowed the grass every day, he might die painfully and alone. Find spiritual sustenance in pain and accept happiness. In the face of happiness, we should learn to share. When we have made achievements in our work and study, we will pass them on to our parents in our hometown. When we are full of pain and joy, we will pour out to our bosom friends. When we are moved by our perseverance, we will write it down in our diary and make it an eternal moment ... In the face of happiness, we must learn to think. When Shi Tiesheng swims in the ocean of literature and enjoys happiness, he will think that this is the result of his respect for disease. When Liu Xiang is enjoying winning the championship, he will think, my heart and blood have not flowed in vain; He will think, I am Liu Xiang, I am an Olympic champion, and China people are the best. Don't forget to think when you are happy, it will sublimate our thoughts and make us more proud. If I were an eagle, I would fly when I was happy, and I would never be uneasy when my wings were hurt, because I know that tempered wings will be more powerful. I will let happiness and pain accumulate energy for myself to sprint the sky. I believe they will keep Baiyun company and hold hands with success. The process of enjoying life is to complete an arduous task and be full of fun. When you treat this task with a loose heart, it will teach you a lesson. On the contrary, when you do every detail meticulously, you will feel the indescribable beauty when you reach every success. But whether it is a lesson or a wonderful one, after the past, you will find that this process is a kind of enjoyment. Life always gives people a lot of enjoyment, which comes from that beautiful process: when fishing in leisure, if you are impetuous and impatient, you will pull up the pole for a while and then put it down, then you will get nothing. At the same time, your mood will be very bad, and you will not achieve the expected purpose. Therefore, you should learn to enjoy and feel the fun with your heart. When the fishing line shakes violently and the fishing rod shakes slightly, the fish is hooked! At this time, if you pull the pole again, the lively fish will jump out of the water and splash around. What a spectacular scene, what a process to celebrate. It is not difficult to find that work is actually a kind of enjoyment. In the morning, when the sun rises, you are caught in a busy day, and you are creating something with your own hands. With the watch of blue sky and white clouds, accompanied by brilliant sunshine, the breeze comes slowly, relying on everything in the world, like playing cheerful music. You see, isn't it a pleasure to be so comfortable? The way home is also a process of enjoyment. Whether by bus or on foot, the "guards" on both sides of the road flashed by quickly, and their eyes were full of fresh green. The coming and going vehicles always give people a clear and brisk sense of speed, as if flying over white clouds, which suddenly relieves a lot of fatigue after work. This is enjoyment, happiness and relaxation. Of course, life can't be smooth sailing, and there are still many uncertainties, including sour, sweet, bitter and spicy. This is life. Living is actually a kind of mood. Don't be discouraged when you meet with failure. No matter how hard it is, be strong. If your heart is there, your dream is there. Think as much as possible about good things, happy things, people who love themselves and people they love, and then sort out the mess, find out the reasons for failure, take a warning and start all over again. Then constantly enrich yourself and improve yourself. After the storm, you will find that you have grown up because of this failed process. When I am old, I sit in the garden and watch the sunset, recalling how long I have traveled in the past, but I have no regrets. Enjoy this process of life and finally walk into the next century with a sweet smile. ...