Ésotérisme et Paranormal
The Complete Treatise on Gold

" All true chymists and philosophers write that common corporeal gold is of not much use in man's body if it is only ingested as such, for no metallic body can be of use if it is not previously dissolved and reduced to the prima materia. We have an example in corals. The virtue of corals is not in the stone or the body but in their red color. If the corals are to release their power, a separation must first occur through a dissolution, and the redness must be separated from the body.
Tincture the body is a shell which is le behind quite white, but the essence of the corals, which is quite red, afterwards perfectly accomplishes its effect in man's body because the obstruction has been separated from it (that is, from the stone and the body). Thus you should also deal with gold, silver, iron, lead, and other metals. If they are to bear fruit, they must likewise be separated from their bodies, that is, from their inner earth or slime, to allow their radical moisture to operate quite unhindered in man's body.
Before, its power could not accomplish it, as the bodies were still held by their metallic slime and earth. Consequently, whoever wants to do something useful in medicine must see to it that he first dissolve and open his metallic body, then extract its soul and essence, and the work will then not result in no fruit.