Everything - a bird, a tree, even a simple stone, and certainly a human being - is ultimately unknowable. This is because it has unfathomable depth. All we can perceive, experience, think about, is the surface layer of reality, less than the tip of an iceberg. Underneath the surface appearance, everything is not only connected with everything else, but also with the Source of all life out of which it came. Even a stone, and more easily a flower or a bird, could show you the way back to God, to the Source, to yourself.