Board Thread:General Discussion/@comment-6192846-20130929130231/@comment-6192846-20140508002621

It seems to be a style of prayer. Mikulia and I.R. are in Abito. A lot of narration of Chapter 2 is devoted to explaining the religion in one form or another, as well as elaborating a bit on what I.R. can do (such as only being understood by the demon-contracted Sateriasis but is mysteriously understood by Mikulia).

And no, not every character gets it. Most of them actually have it happen in passing, usually mentioned through narration. Of the ones that get touched upon, I believe it's only Lukana, Mikulia, and Maylis. Having said that, I haven't been too terribly focused on them.