The metaphysical implications of the immune system are so obvious that they are often overlooked. The immune system is the defense of the body. It is the intricate network of players with unusual names like T-cells (both T-4's and T-8’s), fighter cells, helper cells, and antibodies that roam the body via the bloodstream in search of any alien energy from which the body needs defense. It is the system that protects you from invasion – it is the system that protects you from being a victim of "the world out there," of the unknown.

The immune system corresponds to your…