Copper and gold globule fed to mercury

Introducing, from the scripture of the chief yogis, the processing of bija (gold), mica, tikshna iron, makshika and their essences (sattva) for binding gold-making mercury, the text first takes copper equal to the bija, makes it into a sheet and smears it with a paste of svarnamakshika twice its amount; the bija is put inside the sheet and the outside is coated thickly with a paste of sulphur. The sheet is rolled into a ball, put in a vajra crucible (vajramusha) with its mouth closed and blown well with khadira charcoal; on breaking the crucible a round globule is found, which is processed and coloured (ranjana) in the same way many times, and finally broken, finely powdered and added to the mercury little by little at the beginning, middle and end, that is, for its jarana.