People will inevitably encounter all kinds of difficulties and setbacks in their lives. We must face the challenge seriously, accept the challenge bravely, and seek development and progress in the predicament. When we overcome one difficulty after another and challenge again and again, challenging difficulties is actually challenging ourselves. If we can go all out to pass the test, life will gain infinite meaning from breakthrough and innovation, and we will feel a sense of accomplishment and happiness. Happiness has no distance and no standard. Happiness is a feeling. When you are satisfied, when you feel happy, that is happiness.