Where did Gandalf go?

[O'Boile]

I came up with my theory becouse i remember reading that he mentioned the Fact that Gwaihir carried him after the battle with the Balrog, as well having council with Galadriel. If he did infact die his Human body would have been (like Sarumans) destroyed and his spirit would not have needed to be carried by Gwaihir.

In the book he says 'Then darkness took me, and I strayed out of thought and time, and I wandered far on roads that I will not tell.'
This to me implies he died (I've never heard otherwise until this thread). Remember that the body was not really part of Gandalf. If it was killed, it probably could be re-animated, since it would have had to have been given life in the first place when the spirit of gandalf inhabited it.