“When one is fully equipped with jnana and vijnana, he is perfect. Jnana means that one understands the Supreme Personality of Godhead, Vishnu, to be the Supreme Being. Vijnana refers to the activities that liberate one from the ignorance of material existence.” (Shrila Prabhupada, Shrimad Bhagavatam, 5.5.10-13 Purport)