Religious image is a term used to describe a visual representation of a deity or spiritual figure. An ICON, ikon, and IDOL are all types of religious images. An ICON is a two-dimensional representation of a holy figure, often painted on wood or stone. An ikon is a similar type of religious image, but it is usually three-dimensional and made of metal or stone. An IDOL is a three-dimensional representation of a deity or spiritual figure, often made of wood, stone, or metal.