What does a strong inner self come from? The core lies in this: whether you can become the absolute decision-maker of your own life. Many people mistakenly believe that strength comes from strong stress resistance and emotional stability, but that's only the surface. The true essence lies in whether you have absolute control over each choice you make, dare to choose, take responsibility, and never look back. This is a person's high level of autonomy. Observe those with fragile inner worlds—their decision-making systems are often parasitic on others: parental expectations, social clocks, a partner's emotions can easily alter their life choices. Highly autonomous individuals, however, possess clear boundaries; decisions they make won't be swayed by external judgment. When facing terrible situations, they can immediately take responsibility and move on; when facing harm, they never look back. They allow external information to flow through, but don't allow it to rewrite their core foundation. The most fundamental operating logic is this: your pain and happiness must come from the implementation of your own will, not from others' feedback.