The Blessed Sacrament is exposed in a monstrance. At the beginning of the exposition of the Blessed Sacrament, a priest or deacon removes the sacred host from the tabernacle and places it in the Monstrance on the Altar for adoration by the faithful. "Monstrance" is the vessel used in the Church to display the consecrated Eucharistic Host, during Eucharistic adoration or benediction. The word monstrance comes from the Latin word monstrare, meaning "to expose." It is known in Latin as an Ostensorium. When a consecrated host is placed in the monstrance, it is said to be a solemn exposition.
The Most Holy Sacrament is kept in a tabernacle for the devotion of the faithful at any time and on any day.
When the Monstrance contains the Sacred Host, the priest does not touch it with his bare hands, but instead, holds it with a humeral veil, a wide band of cloth that covers his shoulders and has pleats on the inside in which he places his hands. At all other times, the reserved Sacrament is kept locked in the Tabernacle, so that the faithful may pray in the presence of the Sacrament.