This page both explains the connection between mind, body and spirit, as well as illustrates it with an article found in the L.A. Times. If you already understand five element theory, you can skip forward to The L.A. Times Article. Otherwise, just keep reading and by the time you get to the article, it will make more sense.
Chinese medicine is a holistic medicine.
This means that there is an awareness that what affects the body, will also affect the mind and what affects the mind will also affect the spirit. Going in the opposite direction, an emotional disorder can manifest in the body as a disease or other disharmony. Chinese medicine goes much further than simply admitting to the connection between mind and body, it goes so far as to actually map out the relationships. The best way to understand Five Element theory is to understand that organs in the human body are associated with one of the five elemental building blocks of the universe, according to Chinese cosmological theory. But these elements are not necessarily physical, they are concepts which have a manifestations on physical and other dimensions.