(Spoilers All) Came across an interesting quote during re-read, and not sure what it means (if anything). So I found the following quote right before Daenerys loses Rhaego.

"Inside the tent the shapes were dancing, circling the brazier and the bloody bath, dark against the sandsilk, and some did not look human. She glimpsed the shadow of a great wolf, and another like a man wreathed in flames." 

Any ideas for what it could be referring it to, if anything?

It caught my eye because of the reference to a wolf (house Stark) and the man on fire (the whole Azor Ahai theory).