“The epigastrium, or, as it is usually called, the pit of the stomach, is one of the most important nerve centres in the whole organism, and must claim special attention in the administration of Medical Psychology as a remedial agency. In this region is situated the semilunar ganglion and the solar plexus, one of the largest in the great sympathetic nerve, which has been properly called the nerve of organic life. The presence of this large ganglion and plexus of nerves, which lie just under the diaphragm, and behind the stomach, constitutes, if not an independent, yet a most important vital centre. This is the reason why a blow on the pit of the stomach sometimes destroys life. In the process of dying, the vital force lingers here after it has retreated from the rest of the body. It often remains warm long after the rest of the organism has become cold and motionless. It is also the focal point of spiritual influx, and is singularly sensitive to the action of the psychic force.”