Man's Threefold Nature and Relationship to Remedies

I recommend you to give heed wherever these processes contrary to external nature are found. You will thereby reach a more fundamental comprehension of what man actually is. You do not understand man's nature by weighing him—to take a symbolic example for all investigations by means of the methods proper to physics; but you will understand something about the mechanics of man immediately if you consider that the brain, as is well known, has an average weight of about 1,300 grammes, but that this full weight cannot press upon the lower interior surface of the cranium, for if it did, all the delicate network of minute veins in that region would be crushed and obliterated. The pressure of the brain on its base does not exceed twenty grammes. The cause is the well known hydraulic principle enunciated by Archimedes, that the brain becomes buoyant as it floats in the cerebro-spinal fluid, so that its total mass and weight are not effective but are counteracted by the surrounding liquid. And just as the weight of the brain is neutralised and we do not live within the physical weight of our organism, but within the buoyancy which is the force opposed to material weight—so is it with other human processes. In fact we do not live in what physics would make of us, but in that part of the physical that is neutralised or counteracted in us. And similarly we do not live in the processes observable as operative in external nature, which reach their final manifestations in the vegetable world, but we live in the cancelation of the plant formation process. This fact is of course an essential in building the bridge between the human organism in disease and remedies drawn from the vegetable world.