There is a new theory about 'Dream' magic going around sparked off by the excerpt from GURPS Myth, saying that the magic that people like Alric cast (Dispersal Dream) are dreams from Wyrd if you are Light, and some other god if you are Dark, that the user can channel into the Myth world from that divince plain of existence.
If you look at the Dream Duel of Rabican and Shiver in Tales, you will notice two face-like things behind each of them. Perhaps these are the gods that their dreams are from?
It seems this way because, when Shiver loses, the face behind her seems a bit pissed off!