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...operation, we must add Luna original: "Lunam"; refers to Silver to our volatile Mercury. This awakens the Sulfur the active, masculine principle in alchemy innate to the Mercury, whereby the Mercury is coagulated the process of turning a liquid into a solid into Gold. For at first, it cannot endure great heat; therefore, the work must be done with very gentle warmth. If one were to add Gold represented by the symbol ☉ to it at the very beginning—and since the Sun Gold requires great heat—the Mercury represented by the symbol ☿ would then have to endure heat according to the nature of the Sun. In that case, the Mercury would be transformed into a red Sulfur that would be neither liquid nor suitable for the Art Alchemical practice, because its Salt the principle of stability and body would be taken away from it. And if someone later wished to fix to make a substance permanent and resistant to fire the Red of the Philosophers original: "Rubeum Philosophorum"; the final stage of the Philosopher's Stone with Gold, he would once again be threshing empty straw a German idiom meaning to engage in a useless or futile task, because there is no transition from one extreme to another except through a medium original: "quia non fit transitus ab extremo ad extremum, nisi per medium." This is a fundamental alchemical rule stating that a chemical or spiritual transformation requires an intermediate stage—in this case, silver serves as the bridge between mercury and gold..
Our Mercury is furthermore also truly the