Revelation—Literally, it means an unveiling or a revealing. In Latin, velare means to cover or to veil (from velum, curtain or veil). Thus revelare means to pull back the veil. As light and darkness are separated by a veil, so too are good and evil. To step behind that veil into darkness is evil. By revelation, the veil is pulled back, removing by light the darkness of evil. See Problem of evil.