Famed Irish vocalist, Moya Brennan, has been one of my favorite vocalists from the time when she was still in the group Clannad. After she left the group she returned to her faith. Her rendition of "Be Thou My Vision" (BÍ THUSA MO SHÚILE) is stunning. Unfortunately, I cannot find a good video of her doing that song. Instead, I offer this video from an older album. The song is about St. Patrick hearing the call to go to Ireland. It's beautiful. Bono says of Moya Brennan, "I think she has one of the most beautiful voices the human ear has ever experienced." She's Enya's sister, by the way. Here's a link to her website. And here is the rest of it.