Worshippers gather into mosques and perform prayer and supplication. Prayer often also includes supplication and asking forgiveness. While the people sing a hymn of thanksgiving and supplication, the priest prays the epiclesis. Muslims consider it a particularly good time for prayer, supplication, and repentance to God. Petitions to a deity are a form of prayer called supplication. They were distinguished for their asceticism in uninterrupted prayer and supplication. Its mood is one of prayerful supplication presenting a heroic effect. There is no supplication in Christian Science prayer. There are Hebrew prayers of supplication for marriage on the walls of the Sarah cenotaph. Anthropologically, the concept of prayer is closely related to that of surrender and supplication. This story is meant to show Achilles the dangers inherent in refusing prayers of supplication. In the Byzantine ceremonial it is a common gesture of supplication or reverence. Supplication for the deceased and mankind is recited. It is recited in the Orthodox Liturgy following the Litany of Supplication on all occasions. The Altar also functioned as a place of supplication and refuge.