Jnana, or Gyana, in Hinduism is the real knowledge – the intuitive knowledge of the Supreme Truth. It is the knowledge of Brahman – the absolute. This knowledge gives freedom from all sufferings. When jnana dawns in a person, he realizes he is the eternal, pure and enlightened. He realizes that he is not the mind, body and ego.
This knowledge is found the in Upanishads, Bhagavad Gita, Yoga Vasishta, in the Puranas, Mahabharata, Ramayana and other holy texts.
All these texts categorically state that individual soul is not separate from the universal soul (Brahman).
Brahman is the all – pervading ultimate reality, and thus ever free from birth, growth, decay, death, pain, suffering, sickness etc., to which the body remains subjected to.
Thus, individual soul is Sat Chit Ananda – truth, awareness and bliss.
Even Jnana, if not used wisely will end up piling up ignorance. Try to define Brahman, arrogance, being proud of once scholarly nature etc., are part of this ignorance.
Brahman is indefinable it can only be realized.