The L ORD God formed the man from the dust of the ground thereby setting the design specifications for all future bodies. Our bodies combine water, organic molecules, and minerals to provide a place to call ourselves. We rely on our bodies to present an appearance to others and to allow us to move and act. Yet our bodies are cursed, they are easily injured, they grow tired, they get sick, and they deteriorate with age. If our present body is all that we can ever expect, we are truly cursed.
Heart is the seat of our irrational self.
It houses gut sense and intuition as well as the emotions. Emotions including joy, grief, contentment, edginess, and of course the much sought after love. But the central element of the heart is the conscience, that inner sense of right and wrong we inherited because of Adam and Eve's disobedience. Human wisdom says let your conscience be your guide, but first you should ask who is guiding your conscience. The mind is where we identify and direct all that we are.