The core of inner strength lies in whether you become the absolute decision-maker of your own life. Strong pressure resistance and emotional stability are only appearances, and the real core lies in whether you have absolute control over every choice you make, dare to choose, admit accounts, and do not look back, which is a high degree of autonomy. People with fragile hearts often rely on others for their decision-making systems, and parental expectations, social clocks, and partner emotions can easily tamper with their life choices. Highly autonomous people have clear boundaries, are not affected by external evaluations, can decisively withdraw in the face of bad things, never look back in the face of harm, allow external information to flow through, but do not allow information to rewrite their underlying core. Your pain and happiness must come from the implementation of your own will, not from the feedback of others.