Final answer:
Religious imagery such as a halo, wings, cross, and crown are often used in literature and art to convey a character's purity and innocence, similar to the depiction of sanctity and morality in Christian iconography.
Step-by-step explanation:
In depicting the purity and innocence of Desdemona in Shakespeare's Othello, various religious imageries that symbolize sanctity and virtue are often utilized. Though the question does not specify that it regards Othello, this interpretation is inferred from the mention of 'Des,' a common abbreviation for Desdemona. We can explore similar symbolic representations as found within Christian art. The presence of a halo over a character's head commonly signifies their saintly nature and moral purity, insinuating that they have been touched by the divine or possess a soul unblemished by sin. Angels are typically shown with wings, indicative of their celestial nature and capacity for divine intervention or protection. The cross is another powerful emblem, representing sacrifice, faith, and redemption. Lastly, a crown can symbolize royal or divine authority and virtue. Within the context of Christian iconography, these elements collectively contribute to the portrayal of a character's innocence and moral integrity.