I have a crackpot theory that the FM have some prophecy or at least some recruitment profile regarding a rare girl with Valkyrie-like abilities or role. The Red priests of R'hllor have their prophecy of Azor Ahai reborn and the Targaryens have the Prince that was Promised. There is the legend of the Last Hero about the Long Night that belongs to Westerosi First Men beliefs. But they are not the sole factions and societies and orders in the books that may have some sort of prophecy about a specia