Clay

.

The continuing overtaxing pressure to adjust to the administered world leaves people no time to do anything but bore into the material clay of their lives, as though their destiny had been to evolve into drill bits, boring deeper and deeper, moving vertically downward forever, indexing, storing, scooping out new data, the important questions met along the way drowned out by the roar of the earthworms.

Sedimentary clay mountain, Petrified Forest National Park, Arizona: photo by puroticorico, 2008
Quaternary clay in Estonia (400,000 years old): photo by Siim Sepp, 2005