who is present at a blessingway? how does this relate to Navajo cultures?

Ned has to go to a singer who will do a ceremony, a “Blessingway,” that will keep him safe when in danger. The singer's Navajo name is Big Schoolboy, but he is also known as Frank Mitchell. Mitchell Catholic, as are many in the Navajo community by this point, but culture is often a blend of Catholicism and Navajo culture.