"Being broad-minded as the sea can prolong life, while being highly respected as a mountain can prolong life" is a self-cultivation couplet, which expresses the meaning that people with broad-minded and open-minded can prolong life, and those with noble moral character can prolong life.

Specifically, "being broad-minded as the sea can prolong life" means that if a person can keep broad-minded, open-minded and cheerful, and reduce physical injuries and diseases caused by negative emotions such as emotional stress and anxiety, it will help to prolong life. And "being highly respected as a mountain can prolong life" means that if a person has noble moral character, positive attitude and attitude towards life, he can maintain physical and mental health, reduce the occurrence of diseases, and at the same time get the respect and support of people around him, so as to be healthier and live longer.