"A fat stomach never breeds fine thoughts"

This quote by St. Jerome is a pointer that physical health and psychological health are carefully linked. He is recommending that if we look after our physical health, it will have a favorable result on our psychological health. He is suggesting that if we have a healthy body, it will lead to a healthy mind. He is also recommending that if we have an unhealthy body, it will result in an unhealthy mind. He is stating that if we have a fat stomach, it will not result in fine thoughts. He is encouraging us to take care of our physical health in order to have a healthy mind. He is advising us that our physical health is a crucial consider our overall health and wellbeing. He is recommending that if we look after our physical health, it will lead to a much healthier and more favorable frame of mind.