Physical body.
Cayce "earthy earth".
See Stages of Soul Development
Schauberger
This means, no more and no less, that retrogressive development will occur everywhere the influence of science is active. Therefore, for lack of the supply of qualigen, mental abilities will constantly deteriorate in step with the progressive rise in the quantity of living flesh. People will become imbecilic, vegetative and the lower orders of life will atrophy and little by little will cease to exist, because the relatively highest energy-concentrate, the 'upwardly radiating', is missing, which manifests and declares itself as 'Life'. [The Energy Evolution - Harnessing Free Energy from Nature, Bio-Technology: Active and Reactive Temperatures]
It is known that a good, light and palatable old wine comes into being through fermentation in a cellar. This is none other than a form of digestive process in which cycloid-space-curve-motion naturally plays a part - a motion the naturalistic doctor calls the 'life-creating spiral' and the biotechnician 'double spiral wave motion' (viz. the cycloid movement of the blood, to which we owe the build-up of mental essences, the creation of thoughts, the formation of our bones and flesh, reproductive embryos and of course, the possibility of overcoming our own physical weight). [The Energy Evolution - Harnessing Free Energy from Nature, New Forms of Motion and Energy]