There is a great deal written in the Mussar books such as מסילת ישרים and ספר הישר about how one needs to focus his concentration on the needs of his soul. The tendency is to worry about our physical and material needs, without realizing that our spiritual needs might be the key to eliminating such worries.
The truly holy individuals are the ones who are detached from the physical world. Material satisfaction is of very little consequence when one feels Hashem's Presence close to him at all times. That spiritual joy far surpasses anything attained in the physical world.
We need to be reminded from time to time of the existence of our soul altogether- especially when our lives become so hectic on a day to day basis. We need to reiterate the fact that our souls have needs just as the body does. Our souls have an eternal aspect about them. And finally, our souls are the source for what ultimately gives us peace of mind and contentment.