[Iarwain]

Okay, I see, Salocin. I forgot to factor in the ring. But, she does say that she could control what the mirror shows, she merely said that it is better to let it show you what it would. How's this:

I think that it was the natural fibre of her own being, tied to the power of the ring, that allowed her to manipulate the water in such a way that it connected with things that appeared to be unrelated to the Hobbits, but in fact were all things to which the reality of Galadriel, or Nenya itself extended. This is why seemingly random visions appeared, because all were related to the rings of power, to which Frodo was bound through his possesion of the One. Because of the fact that Galadriel possessed Nenya, a great ring, the mirror had an immensely greater range of vision, because the ring was tied into a sort of network through the One Ring, and therefore all things related to all the rings were possible sights in the mirror.

I hope that isn't too confusing, I'm thinking as I write, so perhaps it didn't come out so well.

Iarwain