"Anima naturaliter Christiana” A naturally Christian soul. A phrase used to describe Virgil. 
You sometimes meet these sort of decent, wonderful people–of every race, culture, religious persuasion–or lack of any faith at all.
And all you can do is cheer.
And you sometimes meet these naturally Christian souls in the animal kingdom.
My sweet first dog Juno was a naturally Christian soul. As to a lesser extent, is my current collie, Jake.