Genuflection (Latin genuflexio "bending of the knee") is an act of reverence in Christianity, consisting of falling onto (usually) one knee. Today the term is used mostly in the Latin rite of the Catholic Church and in churches of the Anglican Communion. The faithful who pass before the presence of the Blessed Sacrament (generally reserved in the tabernacle) are expected to genuflect on the right knee as a sign of devotion. If the Eucharist is exposed in a monstrance or ciborium placed on an altar for a service of devotion, one may genuflect on both knees (called a "double genuflection"). Genuflection may occur at other times as well, for example when the Blessed Sacrament is being moved (e.g., from one tabernacle to another), or at certain points in the liturgy (e.g., at the words "and was incarnate by the Holy Ghost of the Virgin Mary, and was made man" in recitation of the Nicene Creed during the liturgy of Christmas and the Annunciation). In th