It is celebrated with an All-Night Vigil on the Eve of the Feast and Divine Liturgy on the day of the Feast. An extraordinary service called the Kneeling Prayer, is served on the night of Pentecost. This is a Vespers service to which are added three sets of long poetical prayers, the composition of Saint Basil the Great, during which everyone makes a full prostration, touching their foreheads to the floor (prostrations in church having been forbidden from the day of Pascha up to this point).