Great joy or grief produces secretions in the blood, which make it poisonous. The prostration by grief is only equaled by that of violent disease. The blood and all secretions therefrom become so affected that a long time is required to eliminate the morbific matter from the system. If this is not accomplished, lingering illness or death is the final result. This is distinct from sudden death, on the disclosure of some startling news, of grief or joy. The heart in these instances suddenly fails at the nervous shock. Successful labor is always invigorating, while unsuccessful is depressing. It was observed in the early mining days of California that a stranger passing the claims could readily discover those that paid and those that did not, by the manners of the men who were working them. If unsuccessful, they were depressed, ill with fevers and idle. If successful they were at work early and late, cheerful, well, and energetic. Every pursuit that ennobles and elevates the mind, tranquilizes the system, enhances the general health, and prolongs life. Such is the wonderful sway the mind holds over the body. On the other hand, we find the body exciting a powerful influence on the mind; so intense and complete that leading physiologists believe that the latter is a result of, and entirely dependent on, the former, and having no existence independent thereof. The microscope has poured a flood of light on disease. In most cases, as with these epidemics and contagions, a specific germ is introduced into the blood and multiplies, feeding on the vital fluid. If taken into the system of a saint it will, by multiplication, produce the disease, just as certainly as in the system of the vilest malefactor. There would be more reasonable grounds for hoping to drive a hungry tiger away by mind cure, than the myriads of microbes that swarm in a drop of the fever patient’s blood, or the microbes in the lungs of a consumptive. Then is the system of mental cure a sham? No! It claims too much. When millions of bacilli swarm in the lungs, or the micrococcus brings on fever, shall we say we are well, that the mind, as a part of God, can not be sick, and as the body is fathered by the mind it can not be? We may say this, but the inexorable logic of facts refute our opinions. We might as well attempt to stay the spring of the tiger by an effort of will. But there is a consideration back of this. By the accumulation of an endless series of taints of body and of mind, by false ideas and views of life, the power of mind over the body can not be compared with what it would be in a perfect state of right living. This is a consideration of greatest value, for it shows us, not what the past has been, but what the future may be.