Illustrations of various Catholic observances of the Paschal Triduum, including (2) the candles of Tenebrae services; (3) the reading of the Passion narrative; (6) the veneration of the cross; (7) the blessing of fire; (8) the blessing of baptismal water; (9) the Paschal candle; (10) the reading of the Four Lessons; (11) the commemoration of the Resurrection.
Many other tridua are celebrated on occasions such as when children are preparing for their First Communion; among pupils as well as seminarians at the beginning of the school year; and in religious communities for those who are preparing to renew their vows annually or every six months.
Historical tridua
A triduum was held in Limerick in 1867 in honor of Our Lady of Perpetual Succour, at which the associated icon was first displayed for public veneration in Ireland.[2]
In January of 1915, a number of German cities observed a triduum of meditation on World War I, an event which was influential on a young Martin Heidegger.[3]
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Triduum". Catholic Encyclopedia. New York: Robert Appleton Company.