An aureola or aureole (diminutive of Latin aurea, "golden") is the radiance of luminous cloud which, in paintings of sacred personages, surrounds the whole figure.
In Romance languages, the noun Aureola is usually more related to the disc of light surrounding the head of sacred figures, which in English is called halo or nimbus. In Indian religions, the back or head halo is called prabhāmaṇḍala or prabhavali.
A canonical coronation (Latin: Coronatio Canonica) is a pious institutional act of the pope, duly expressed in a formal decree of a papal bull, in which the pope bestows the pontifical right to impose an ornamental crown, a diadem or an aureole to an image of Christ, Mary or Joseph that is widely venerated in a particular diocese or locality. The act was later regulated to Marian images only, through the De coronatione imaginum B.V. Mariae that was issued on 25 March 1973.
The formal act is generally carried out by a representing proxy of the pope, via the designated apostolic nuncio to a country or kingdom, or at times a lesser papal legate, or on rare occasions by the pope himself, by ceremonially attaching a crown, tiara, or stellar halo to the devotional image or statue.
A halo (from Ancient Greek ἅλως, hálōs, 'threshing floor, disk'), also called a nimbus, aureole, glory or gloriole (Latin: gloriola, lit. 'little glory'), is a crown of light rays, circle or disk of light that surrounds a person in works of art. The halo occurs in the iconography of many religions to indicate holy or sacred figures, and has at various periods also been used in images of rulers and heroes. In the religious art of Ancient Greece, Ancient Rome, Christianity, Hinduism, and Buddhism (among other religions), sacred persons may be depicted with a halo in the form of a circular glow, or flames in Asian art, around the head or around the whole body—this last form is often called a mandorla.
Halos may be shown as almost any colour or combination of colours, but are most often depicted as golden, yellow or white (when representing light) or as red (when representing flames). The earliest artistic depictions of halos were probably in Ancient Egyptian art.
A mandorla is an almond-shaped aureola, i.e. a frame that surrounds the totality of an iconographic figure. It is usually synonymous with vesica, a lens shape. Mandorlas often surround the figures of Jesus Christ and the Virgin Mary in traditional Christian iconography. It is distinguished from a halo in that it encircles the entire body and not just the head. It is commonly used to frame the figure of Christ in Majesty in early medieval and Romanesque art, as well as Byzantine art of the same periods. It is the shape generally used for mediaeval ecclesiastical seals, secular seals generally being round.