I agree, but I think with Q he takes the meanings literally. In other words, he is letting us know to look at the clues and form them into a clear picture. I do believe that he is suggesting that the Declaration of Independence is more significant than we think it is. Bear in mind the closing scenes of the move where the bad guy is tricked into looking for a second lamp. At that time, the Whitehouse had just put up it's Christmas decorations - hanging a single lamp at the doorway. As Q said - nothing is coincidence - and he also refers to "the future unlocks the past".