I doubt it's very important but do we ever figure out what/who/why there's a single fly in T'a'r? Rand senses it when he's in the void and enters T'a'r in the flesh and I just wondered if there's any signifigace to it (there's very rarely something that RJ throws in that doesn't have some signifigance). Anyone?

It's probably just a literary way of saying Rand's senses are really tuned to this kind of thing. Like a metaphor or simile...

Actually wild life has an echo in TAR. From rats to animals to insects.