Our friend Lucifer Means Lightbringer has a great post on the possible symbolism of Visenya Targaryen in relation to the ice-and-fire-moon hypothesis of ASOIAF. As usual, @LmL uses the context of small bits of information revealed by GRRM to help uncover symbolism of greater significance. In this case, when determining the color of Visenya's dragon, Vhagar, we find that this description from TWOAIF symbolically refers to a white (and possibly icy) dragon: Just a few thoughts on the “