Maybe a thread heading for fights would be useful. But then anything can turn into a fight - even a prayer. It'd be quite fun to have a gizmo that made the treads start flashing once a fight had started. Then we'd know either to stay away or pile on in.

Perhaps someone should set up as a war correspondent.

Seriously: I agree that "prayer" is too specific, as is "healing" - both terms shut out some people, and even spark arguments where they aren't needed. "Good thoughts" is as good as anything. That would cover the good news you might want to share, as well as the troubles you want to half.