The Shilaputraka Nyaya is used to explain the theory of creation in Ayurveda. It describes how the primordial Avyakta (unmanifest) evolves into the manifest universe through a process of cutting the "shila" (rock) into "shilaputras" (pieces of rock). According to this theory, Avyakta contains the three gunas of sattva, rajas, and tamas in perfect equilibrium. When Purusha combines with Avyakta, disturbances arise leading to the formation of Mahat and subsequent principles down to the panchamahabhutas that make up the universe. The Shilaputraka Nyaya