Prayer before the Blessed Sacrament, either reserved in the tabernacle or exposed in a monstrance, continued by successive worshipers day and night without intermission. The practice of perpetual adoration of God by psalm and prayer has been maintained by monks and nuns since early Christian times, e.g., by the akoimetoi in the East, and the monastery of Agaunum, founded by King Sigismund of Burgundy in A.D. 522. Similar practices were current elsewhere before the ninth century. It was in France that perpetual adoration of the Eucharist began. Mother Mechtilde of the Blessed Sacrament pioneered the custom on request of the Père Picotte. The Benedictine convent, founded for this purpose, opened on March 25, 1654. Since then many religious communities have made perpetual Eucharistic adoration either the main or an essential part of their rule of life. Confraternities of the faithful have also been organized to practice the devotion, along with the religious or, in some cases, in their parish churches.