Jnana is a sanskrit word means Knowledge and Jnana Yoga means "Path of Knowledge". Jnana Yoga uses the mental power as an instrument to realize that our true self is after and ahead of our mind. But it is a mistake to believe the resource could be found with the mental power alone. For the purpose of Self-discovery, Jnana Yoga search the life of the self with the help of question "Who am I?" So we can also conclude that Jnana Yoga is a mission to investigate self or "who we are".

On the basis of Bhagwat Gita Philosopher Adi Shankara written that Jnana Yoga is knowledge of supreme that is Brahman, but later his follower and critic Ramanuja state that Jnana Yoga is only observe knowledge as a condition of devotion. Krishna says in Bhagwat Gita that Jnana is nothing but correctly understanding the kshetra and here kshetra is field of activity, that is nothing but human body and kshetra-jna is one who know the body that is Soul. Krishna stressed that Jnana Yogi must know the difference between these two.

According to Jnana Yoga there are four different means of salvation:

First is Viveka - Capability to distinguish between real and unreal.
Second is Vairagya - with continuous practice yogi should become capable to separate her or himself for all that is temporary.
Third is Shad-sampat
Fourth is Mumukshutva means powerful desire for release from temporal boundaries.

So the main principle of Jnana Yoga is to extract the brain and emotions from perceiving life and oneself in a deluded means so that one may observe and live in attunement and actuality