Life needs happiness

There is a young man who always complains to others that everything is not going well, and others don't care about him, so he thinks that life brings him only pain and suffering. Happiness is only a dream for him forever. One night he had a dream that his life flashed quickly from birth to death. He even felt the smell of death. He came to heaven and saw God. God warmly entertained him and asked him if he had any unfinished wishes. The man thought for a moment and said, "Dear God, you gave me a second chance, but why do you let me always live in pain? Happiness is always so far away from me; the biggest regret of my life is that I can't feel the taste of happiness. How can I get happiness and feel happiness?" God smiled and answered him, "happiness has never left you, but you haven't given it. Besides, happiness can be made. You can go back and think about it."