You Live Because Insects Eat You

A person is buried in a wall.
(The person is made of particles that easily crumble.)

The person becomes an insect that floats in the air.
(The internal organs of the insect are parched and dry.)
The insect is dancing on a thin sheet of paper.
The insect tries to hold falling particles from its own body
and dances, making rustling noises.

The insect then becomes a person,
so fragile that he could crumble with the slightest touch,
who is wandering around.