As Christian we are to be content in all things. Phil. 4:11
Looking for positive things in life, what has God done for us individually, keeping it in mind helps to overcome difficult tasks in life.
Avoiding talking negatively about others and instead praising and giving thanks, helps our mind to be pure and filled with gratitude.
The condition of the mind affects the health of the physical system. If the mind is free and happy, from consciousness of rightdoing and a sense of satsifaction in causing happiness to others, it creates a cheerfulness that will react upon the whole system, causing a freer circulation of the blood and a toning up of the entire body. The blessing of God is a healing power, and those who are abundant in benefiting others will realize that wondrous blessing in both heart and life. (CCh 216.2)