From Lost Fables Wiki
Prayer of Holy Light: The prayer of holy light requires one to intensely, and silently pray to Belador about how you could improve yourself until the holy candle, burned at the same time, flashes bright. Depending on how much one needs to change, this ritual can take quite a while.
Prayer of First Morning's Light: This prayer is done to an altar while the sun just starts to peek over the horizon. You are meant to come to a crescendo as the sun's first rays touch you, and the prayer winds down after that. This prayer, done correctly, gives a plus five in rolls to contact a deity.
The Hymn of Judgement is wordless, usually hummed or played on an instrument, and is typically played after a battle or execution. It is meant to beseech Belador to judge the souls with a light hand and favorable eye. The hymn can also be performed before an altar to attempt to make contact with Belador.
Like all celestials, Dreidam speaks almost entirely in signs, almost never giving answers in absolute. One must interpret the will of the celestials in most part...