Diet is fundamental in a holistic approach to good physical and emotional health. The Rebbe points out that Kosher food encourages good health of the body and the mind, and spiritual health of the soul.
What is most fascinating about this concept is that usually we associate awareness with the soul. Yet, Jewish mysticism teaches that the body too was created by G-d. It therefore contains unique Divine energy of its own. Indeed, the body carries enormous power stemming from the Essence of G-d, which in some ways is superior even to the energy of the soul!