The Philosophy of the Upanishads c10.s5.t1.2

c10.s5.t1.2

The fundamental conception and ultimate assumption of the system is the dualism of *prakṛiti* (nature) and *purusha* (spirit). There exist together with and in one another from eternity two entirely distinct essences, but no attempt even is made to derive them from a higher unity or to trace them back to it.