The practice of perpetual prayer (Latin: laus perennis) was inaugurated by the archimandrite Alexander (died about 430), the founder of the monastic Acoemetae or "vigil-keepers".

Laus perennis was imported to Western Europe at Agaunum, where it was carried on, day and night, by several choirs, or turmae, who succeeded each other in the recitation of the divine office, so that prayer went on without cessation. Called the Akoimetoi ("Sleepless Ones"), these monks prayed "a monastic round of twenty-four offices to fill every hour." The inauguration of laus perennis at Agaunum circa 522 was the occasion of a solemn ceremony, and of a sermon by St. Avitus which survives. The "custom of Agaunum", as it came to be called, spread over Gaul, to Lyons, Chalons, the Abbey of Saint Denis, to Luxeuil, Saint-Germain at Paris, Saint Medard at Soissons, to Saint-Riquier, and was taken up by the monks of Remiremont Abbey and Laon Abbey, though the Abbey of Agaunum had ceased to practice it from the beginning of the ninth century.

• Shia@ (1)

See also:

• Science: Social Sciences: Psychology: Psychology and Religion: Religious Experience: Prayer (21)

• Supplications
  supplication.8m.com
  A collection of supplication to Allah.
• Fortification of the Muslim
  makedua.com
  On-line rendition of the "little du'a book" by Hisnul Muslim.
• Salaat Time
  salaattime.com
  A multi-function application that calculates daily prayer times and Qiblah direction for anywhere in the world.