The scene turns to the heart, and the environment moves to the heart. What does this mean?

Just like a sentence in Yong Zheng's "Yue Xin Ji": The realm is silent, but those who do not declare that they are not silent are at ease. I think it is: we should create the environment with our heart and adapt to it, not be influenced by it. The heart turns with the environment, and life is like duckweed drifting with the tide; When you change your mind, when there is nothing, it is not the end. Only when there is no phase can you feel at ease. If the heart changes with the change of situation or realm, then the heart is not a free heart, not a comfortable heart; If the mind can change a certain situation and does not step out of this realm, it will be uncomfortable and not free.