[Gorwingel]

I personally think that what the discussion means is that Bombadil is much more important than he appears. I can't recall right now but I think I heard something about Bombadil talking with the elves that are traveling through that area and gathering information that Gandalf did not know about it. I think that Gandalf was probably inquiring Tom B. about if there was any effect on the woods around his home because of the growing power in the East.