" jnana is the standard term for the highest kind of knowledge: not scholarship or book-learning but direct knowledge of God, spiritual wisdom. If we take jnana in this sense, we are not left with an obvious meaning for vijnana, a “more intense kind of jnana.” Ramakrishna takes vijnana to mean an intimate, practical familiarity with God, the ability to carry through in daily affairs with the more abstract understanding that is jnana. Ramakrishna says, “One who has merely heard of fire has ajnana, ignorance. One who has seen fire has jnana. But one who has actually built a fire and cooked on it has vijnana. "

― Krishna-Dwaipayana Vyasa , The Bhagavad Gita