Xaden fills the doorway like some kind of dark, avenging angel, the messenger of the queen of the gods. He’s fully dressed, his face a mask of veritable rage as shadows curl from the walls on either side of him, hanging in midair.
when xaden comes to save violet from the unbonded, he's described as "the messenger of the queen of the gods".
(...) a woman with a full pack, whose high cheekbones and oval face remind me of renderings of Amari, the queen of the gods.
in rhiannon's description, we learn that the queen of the gods is called amari.
Her eyes widen as her gaze sweeps over the town, each structure with its identical green roofs, then pauses on the Temple of Amari, which was the most noted landmark besides our library.
in xaden's pov, when violet wakes up after brennan mends her, she instantly guesses she's in aretia because she sees amari's temple.
which is known for the temple of amari, the queen of the gods.
and he's been going to aretia to deliver news from basgiath for the rebellion, as well as help rebuild it.
he's quite literally the messenger of the queen of the gods.