Prayer to be chanted while dressing or arming for battle. It is also known as a breastplate prayer. It is recited for protection while one prepares for physical or spiritual battle. The Hymnal 1982 includes two Celtic loricas, "I bind unto myself today" (Hymn 370) and "Be thou my vision, O Lord of my heart" (Hymn 488). See Breastplate of St. Patrick.
Glossary definitions provided courtesy of Church Publishing Incorporated, New York, NY,(All Rights reserved) from "An Episcopal Dictionary of the Church, A User Friendly Reference for Episcopalians," Don S. Armentrout and Robert Boak Slocum, editors.