The music is "Be Thou My Vision" by Brayline on their self-titled album (2006)
The folk song got its start in Ireland around 433 AD, when on the night before Easter; St. Patrick defied a royal decree by lighting candles. High King Logaire of Tara had traditionally lit a fire beginning a pagan spring festival. It was his order that no one could light a fire before him on this night. When Logaire learned of St. Patricks arrogance, he was so impressed he let him continue services.
