Consciousness—This term is derived from the Latin conscire, to know or be aware of. The equivalent Sanskrit term is cetana. Consciousness is the irreducible symptom of the self. It knows, it feels, and it wills. There are many theories about the relation of consciousness to matter (see Mind/body problem), but all of them are conceived in the conscious mind. Take away consciousness and theories are impossible. Then what is the use of speculation about dead matter as the source of consciousness? Subtle mind, intelligence and false ego are imposed upon consciousness by the three modes of nature. Similarly, due to these modes, wakefulness, dreaming and swoon occur against the background of consciousness. But though the modes cover it, consciousness remains essentially pure, eternally. In the liberated state, consciousness displays a non-material mind, intelligence, pure ego and perfect form. There are two orders of consciousness: vibhu and aṇu. The first is the level of God's consciousness, which is all-pervading. God knows everything in totality and everything in particular. His consciousness is never influenced by matter, although matter cannot exist apart from His consciousness. The aṇu (limited) order of consciousness belongs to the jīva. Because it is limited, matter can cover it, unless the jīva remains under the shelter of the Supreme Consciousness. See Ecstasy, False ego, Gross body, Intellect, Jīva, Mind, Mind/body problem, Modes of nature, Soul, Subtle body, Supersoul.