Why must you speak kindly to yourself? Because every word you say to yourself is shaping your perception of who you are. Many times, people don't live in reality, but in their interpretation of reality. Someone who constantly says they can't do it will become increasingly afraid to try; someone who always says they're unlucky will increasingly overlook opportunities; someone who repeatedly claims they lack ability will gradually give up on growth. Although language can't directly change reality, it influences your beliefs, choices, and actions, and these ultimately will alter the course of your life. Therefore, speaking kindly to yourself is not self-comforting nor blind optimism, but about building a more powerful self-awareness: I may not be strong enough yet, but I can grow; I may fail, but I won't deny myself because of it. Because how you define yourself will determine how you act, and your long-term actions will ultimately decide what kind of person you become.