Earth was used extensively for remedial purposes in ancient times as well as the middle ages. In modern times, it again came into prominence as a valuable therapeutic agent in the last century through the indefatigable efforts of Emanuel Felke, a German-born Lutheran minister who was nicknamed the "Clay Pastor."

Felke found that the forces of earth have remarkable effects upon the human body, especially during the night. These effects are described as refreshing, invigorating and vitalising. Felke believed that for wounds and skin diseases, application of clay or moistened earth was the only true natural bondage. The body is thus repaired with the element from which it is assumed to be made.

Adolf Just ( 1838 - 1936), one of the pioneers of nature cure in modern times, believed that all diseases, but especially the serious nervous troubles of our age, would lose their terrors, if only sleeping or lying on the earth at night became customary in the curing of diseases. According to him, by sleeping on the ground, "the entire body is aroused from its lethargy to a new manifestation of vital energy, so that it can now effectively remove old morbid matter and masses of old faces from the intestines, and receive a sensation of new health, new life and new unthought -of vigour and strength."

Going barefooted all day long, except when it is very cold, is also regarded as a valuable step towards achieving good health and true happiness. Men can draw vital energy and strength out of the earth through their feet. Jesus Christ also attached a great deal of importance to the practice of going barefooted. He himself was barefooted and commanded his disciples likewise.

It is advisable to go entirely barefooted as often as possible, especially on the bare ground but in rooms with painted floors it is better to wear chappals, since the painted floor affects the body adversely if one walks on it with bare soles.

The American Indians lay great stress on earth treatment. They believe that healing power is strong in leaves and herbs, powerful in the air, but very powerful indeed in the earth. They have a custom to bury sufferers from all kinds of disease in the earth upto their necks, leave them there for some hours, and then remove them. They believe that many of them are cured. Presumably the body draws unto itself the healing minerals and some of the earths magnetism.