The Stranger or the Giant that landed near the Harfoot camp was the one who said those words, Mana / Ure
He is also seeking something that has to do with the Stars, so that plot is developing too. It will all fit together down the line, right? I think hes is good guy, maybe one of the Wizards...
I liked your first choice: Gandalf. Of course Gandalf did not come to Middle Earth as a meteorite ... he came by way of a ship to the Gray Havens ... But we are speaking of that other tale: The LOTR. 😉
Given that context you mentioned, your two words might imply 'Blessed Fire' - the meteorite. (Yukkk)