monstrance

A monstrance is a liturgical vessel used primarily in the Roman Catholic Church and in some Anglican and Lutheran communities to display the consecrated Eucharistic host for public adoration. The term derives from the Latin monstrāns, “showing,” from monstrare, “to show.” A vessel designed for this purpose is often called an ostensorium, though in common English usage monstrance is preferred.

Construction and appearance typically center on a transparent container, the luna, which holds the host. The luna is mounted in a frame with a stem and base, and the surrounding motif is usually a radiating sunburst or other ornate design. Vessels are commonly crafted from precious metals such as gold or silver and may be gilded, enamelled, or adorned with jewels and iconography. The host is visible through the luna, sometimes protected by a glass or crystal covering.

Function and liturgical use center on exposition of the Blessed Sacrament for adoration. The monstrance may be placed on the altar for extended prayer or carried in processions, especially during feast days or devotional observances like Holy Hours. Benediction is a common ceremony in which a blessing is given with the monstrance present.

History and scope: monstrances emerged in the Middle Ages as beliefs in the real presence were reflected in devotional practices centered on Eucharistic adoration. While most widely used in the Catholic Church, similar processions or adoration practices appear in some Anglican and Lutheran contexts. In Orthodox practice, devotion is typically directed to icons rather than a movable vessel for exposure.