Jnana Yoga
Jnana is knowledge. To know Brahman as one's own Self is Jnana. To say, "I am Brahman, the pure, all-pervading Consciousness, the non-enjoyer, non-doer and silent witness," is Jnana. To behold the one Self everywhere is Jnana.Jnana yoga is one of the four basic paths in yoga (Jnana, Bhakti, Raja & Karma.)
Jnana yoga teaches that there are 4 Means To Salvation. These 4 means are:
Viveka - Discrimination: The ability to differentiate between what is real/eternal (Brahman) and what is unreal/temporary (everything else in the universe.)
Vairagya - Dispassion: After practice one should be able to "detach" themself from everything that is "temporary."
Shad-sampat - The 6 Virtues: Tranquility (control of the mind), Dama (control of the senses), Uparati (renunciation of activities that are not duties), Titiksha (endurance), Shraddha (faith), -- 11:02, 30 Jul 2004 (UTC)Samadhana (perfect concentration).
Mumukshutva - Intense longing for liberation from temporal limitations.
One of the fundamental pillars of Jnana yoga is Brahman (non-dualism) which is a fundamental belief in the unity of the universe. The "liberation" mentioned above might be described as "wanting to be one with the universe."