How do people get intrinsically motivated?

This boy used to come to the chair every day to play football. He never joined the playing team. Even though he couldn't join the team, he didn't stop practicing. While the boy was practicing, his father was waiting at the edge of the square. Four days after the start of the match, the boy cut the Ion Quarter and semi-final match, even played to practice, even then it was the day of the non-final match, and finally, the boy hung on the ground. He went straight to the coach and said, "You always had me as a backup player. I never got a chance, but please let me play today." The coach said, "Dad, I'm sorry, but I can't give you this chance. There are more qualified players than you. Again, this is the final game. On the other hand, it's also a game. Against the honor of the school. I'm taking all these risks to give you a chance." must face So, I can't do it. Again the boy begged meekly, "Sir, I promise. I will make full use of the opportunity you have given me. I will not let your wish go to waste. Please give me such a chance." The boy had strong confidence in his speech and face. You have demanded and demanded. The coach changed his mind. The coach said it's fine, don't play. But remember, I have taken this step against sound and reliable judgment. I don't want to be ashamed of it. The game started. The boy put all his energy into the game. When he finds the ball with his feet, he takes it straight to the post. That team won the match with a brilliant performance. The boy became the hero of the game. The grown-up coach hugged the boy and said, 'Father, I was wrong, I believed that you would play like this. How did you play so well? The boy replied, Sir, today my father was watching me play. This boy used to come to the chair every day to play football. He never joined the playing team. Even though he couldn't join the team, he didn't stop practicing. While the boy was practicing, his father was waiting at the edge of the square. Four days after the start of the match, the boy cut the Ion Quarter and semi-final match, even played to practice, even then it was the day of the non-final match, and finally, the boy hung on the ground. He went straight to the coach and said, "You always had me as a backup player. I never got a chance, but please let me play today." The coach said, "Dad, I'm sorry, but I can't give you this chance. There are more qualified players than you. Again, this is the final game. On the other hand, it's also a game. Against the honor of the school. I'm taking all these risks to give you a chance." must face ; So, I can't do it. Again the boy begged meekly, "Sir, I promise. I will make full use of the opportunity you have given me. I will not let your wish go to waste. Please give me such a chance." The boy had strong confidence in his speech and face. You have demanded and demanded. The coach changed his mind. The coach said it's fine, don't play. But remember, I have taken this step against sound and reliable judgment. I don't want to be ashamed of it. The game started. The boy put all his energy into the game. When he finds the ball with his feet, he takes it straight to the post. That team won the match with a brilliant performance. The boy became the hero of the game. The grown-up coach hugged the boy and said, 'Father, I was wrong, I believed that you would play like this. How did you play so well? The boy replied, Sir, today my father was watching me play.