I was doing shamanic training where we had to bring a big rock with us for some divination training. The thing was you looked at this rock to find your answer but not because the rock had the answer as much as looking at all the grooves on the rock gave the intuitive or whatever part of your mind an opportunity to project an image onto the grooves in the rock, and this image related to the answer you were looking for in your divination. The rock isn't "Special" its just a playground for your imagination. And it works, or well it can work depending on how active your imagination/subconscious/whatever is. Don't be so "literal" in your understanding of everything.