“This almost menacing perfection – for it rests on the absence of life, the visible stillness of death – appears in stones so variously that one might list all the endeavours and styles of human art and not find one without its parallel in mineral nature. There is nothing surprising about this: the crude attempts of that lost creature, man, could not cover more than a tiny part of the aesthetics of the universe.
No matter what image an artist invents, no matter how distorted, arbitrary, absurd, simple, elaborate, or tortured he has made it or how far in appearance from anything known or probable, who can be sure that somewhere in the world’s vast store there is not that image’s likeness, its kin or partial parallel?

Roger Caillois
In “The Writing of Stones”