Knowledge is power.
Believe in the existence of God the super power.
If we learn to be happy in our life, we will be more healthy and we will have a peaceful life. Getting overstrained and not giving time to be with our people will make you sick. So as suggested by the author we should always take some time from our busy schedule and enjoy the time with our family members and friends.
But at the same time spending all the time in enjoyment and not working is also a bad trait. We should have a balance in our life. We should also learn to derive happiness from our work. That will make us successful in our life.