Ajhana (ajhana), in Hinduism, means ignorance of the Self or of Realty. It is also defined as unknowing, the perceiver of forms of illusions, derived from maya, the power-of-illusion. In the Abysmal Immensity, ajhana is not absence of knowledge but represents a state beyond knowledge, the nature of which is transcendent Being. A.G.H.
Rice, Edward, Eastern Definitions: A Short Encyclopedia of Religions of the Orient, New York, Doubleday, 1978, 8