A box

A box by itself is innocent
Add six feet of dirt
And six hours of air
It becomes a scary proposition.

Put a person in the box
Six hours of air
Six feet of dirt surrounding the box
A terrifying notion.

The air runs out of the box
The walls seem to close in
Dirt runs into the box covering the legs.

Thrashing around causes the air to diminish
All around is darkness
Dirt shifts around the box.

More dirt covers the chest
The air is growing thinner.

Until time runs out
Until you disappear forever
Only a memory.