This passage has been important to me because, instead of simply thinking of the eye as a kind of camera—that views or captures things in the world—it suggests that the things themselves are already photographic, that is, already images. The world Bergson imagines is a world composed of images, saturated by images, one in which objects themselves can be imagined as photographic. For example, trees themselves, insofar as light passes through their leaves and branches and produces shadowed images on the ground, can be viewed as photographic apparatuses and, if trees can be photographic, perhaps we do not yet know what a photograph is.