Let the answer be found in ghe gangrene, the erysipelas, or the impending typhoid state. The secret workings of vital force are under infinite surveilance. Just how it works, mortal man may never know. We live in a world of effects, and it is only of these we can become cognizant. The blood propelled by the heart, sweeps over the aortic arch and down the aorta, never dispensing its gifts until it reaches its ultimata in the capillaries.
Nerves run to and from centres, giving no impressions until their termini are reached.
The ulna, irritated at the elbow, tingles at its termination in the little and outer side of ring fingers. So with every vital effort, it is in its fulness only when terminated in its appointed organ or organs. Organs are made of tissues, tissues of molecules, and herein are consummated the complex vital phenomena which make up life. As Hahnemann says, the internal changes we cannot determine. But their effects, which appear normally in conscious sensation and motion, and abnormally in symptoms, are determinable.