Not Unlike the Waves Lyrics

Lyric discussion by catsquared 

Cover art for Not Unlike the Waves lyrics by Agalloch

I first thought it was talking about the aurora borealis aswell, but I think this song is simply about sunrise, especially after reading Delirium's list of references. It says in this line that the title is referring to sunrays:

Amber streams from Sol are not unlike the waves of the sea

I feel this song is a collection of mythological figures and ideas that all tie in to the subject of the rising of the sun - dawn.