“A single acre of soil can contain 2,400 pounds of fungi,
1,500 pounds of bacteria, 900 pounds of earthworms, 890 pounds of
arthropods and algae, and 133 pounds of protozoa. The soil teems with
life, as does the dead body (inside its sausage casing of keratin, or
dead skin). Microscopic sorcery takes place when a body is placed just a
few feet deep in the soil. Here, trillions of bacteria living inside
you will liquefy your innards. When the built-up pressure breaks the
seal of skin an orgiastic reunion takes place, in which our bodies merge
with the earth.
We owe our very lives to the soil, and, as William Bryant Logan said,
“the bodies we give it back are not payment enough.” Though, presumably,
they are a start.”

— From Here to Eternity, by Caitlin Doughty

A
natural burial is the act of returning a body as naturally as possible
to the earth. To achieve this, it is recommend that the body not be
embalmed or cremated, but instead buried in a simple casket or shroud,
in a protected green space.