The description of this scene is insinuating on the importance of the little things which I believe is what the author was trying to convey when asking such questions to seeing a dog with a bone. He even refers to Plato at one point who was known as a philosophical speaker who was wise in such ideas. "Plato says that true and reliable knowledge rests only with those who can comprehend the true reality behind the world of everyday experience." (Macintosh) Platos theory of forms suggested that there is a different reality to everything for each person. That would insinuate that for a dog, that bone is big thing worth his time, while as humans, we see the dog with his bone and think "why bother?".