The Shaktism literature on goddess such as Kularnava Tantra highlight jnana marga as important to liberation. It differentiates between two kinds of jnana: one it calls knowledge that comes from Agama texts, and another it calls viveka (insight). The Shaktism literature then adds that both lead to the knowledge of Brahman, but the first one is in the form of sound (shabdabrahman), while the insight from within is the ultimate truth (parabrahman).[53]