Human beings are incredibly good at compartmentalizing things. We often do this as a coping mechanism in order to take something which is complicated and divide it into manageable parts.
Unfortunately the sum of the parts does not always equal the whole. For instance, if you take a slice of bread and eat the ingredients one at a time you didn't eat a slice of bread.
Our lives are a lot like this. God gave each one of us a mind, a body, and a soul. If we treat these seperately without any regard for how they relate to one another our lives will be anemic at best. We must learn to recognize that God made us to be whole people which means that we must care for the whole person.
If you get up every morning and spend an hour in your Bible, praying to God, but eat junk food all day long; pretty soon it will affect not only your body but also your mind and soul. If you exercise 2 hours a day but never spend any time feeding your soul it will soon begin to suffer. And If you read your Bible, spend time in prayer, and gets lots of good food and exercise but fill your mind with perverse images or thoughts it won't take long before your Spirit and body are just as sick as if you neglected them.
The point is this, God made each one of us as whole people with a mind, body, and a soul. In order to be the healthy person that God wants, we must take care of our whole persons.
-Aaron
