This document discusses the process of satvapatana, which is the extraction of the active principle or essence from minerals and metals. It begins by defining satvapatana and classifying it based on the form of satva extracted, the nature of the material, and the satva obtained. The document then outlines the aims, methods, equipment, and materials used in satvapatana like crucibles, fluxes, and heat sources. Specific extraction processes are provided for minerals like manahshila and metals. Analysis of the extracted satva is also presented. The conclusion differentiates satvapatana from metallurgy and emphasizes its therapeutic goal of obtaining an active principle.