Jñana is one path to Moksha, and in Sanskrit it means 'knowing.' This concept is closest to the ideals of the 9th century philosopher Shankara, who said that Moksha is only attained by removing the Avidya that hides the impermanence of this world (maya). Shankara also said that atman is Brahman and that they cannot be separated, just as salt cannot be separated from water. Upon reaching the higher, transcendental level of truth, one will realize that even in maya/illusion, Brahman is present and that he plays (Lila) with maya. This doctrine is of non-dualism.
see dualism