The Heart's Code points the way to a new revolution in our thinking. Metaphorically, the heart is the sun, the pulsating, energetic center of our biophysical "solar" system, and the brain is the earth, one of the most important planets in our biophysical system. One implication of the energy cardiology/cardio-energetic revolution is the radical (meaning "root") idea that energetically, the brain revolves around the heart, not the other way around." ~ Forward by Gary E. R. Schwartz, Ph. D. & Linda G.S. Russek, Ph. D.