someone mentioned a while back that the trow may have used calliach magic to sink yer'ks. well i was wondering if trow would be smart enough to actually harness some of the more potent dreams that were being used,ie the one that may or may not have sunken yer-ks, and the one that sunk si'annwon.
ps. what exactly is a "dream" is it like an artifact that can be used to cast a spell, or is it a spell written and memorized and if so, how were they "found" by the calliach?
and also,if they are artifacts, than are they passed on from father to son.
and finally,if the dreams are what made the world and there are 49(?) dreams, then are there any known dreams for actual creation, and not only destruction.