I learned yesterday that it’s illegal, in Catholic terms (I guess that would be canonically) – to allow a saint, once canonized, to remain buried underground. Can anyone confirm? I’m trying to think of exceptions I’ve seen…but I really can’t. Et vous?

(I heard it re/the Sisters of Providence in Terre Haute. Their founder, Mother Theodore Guerin, is being canonized in October, and she is buried under the floor of their church, and they’re having to dig up the body and re-inter above ground.)