Derived from the Buddhist "Impermanence Sutra". It means that what a person sees, or his understanding of things, and his feeling of seeing things are all determined by his own heart, and his environment and situation will change with the change of mood. Your heart will affect your behavior, forming habits, personality and appearance; The heart is no longer disturbed by the outside world, but becomes kind, beautiful, optimistic and positive because of its own nature, which can transform your environment. Simply put, your cognition has changed and the world is different. This is why some people watch the sunset beautifully, while others will be miserable.