Clay is everything.
Clay can be persuaded to mimic plastic, glass, wood, stone, concrete, leather, metal, and even hair, if you add a bit of skill.
Yet on it's own, uncovered, clay is a permanent memory of all that touches it. From the texture of it's rough stretched particles to a delicately refined fingerprint, as well as the fire that immortalizes it, clay is both simple and complex. As clay peeps know, clay is highly addictive.
Just feel it.