Somewhere underground

Somewhere underground
where tree roots and fungi interconnect
where rock falls apart and lets strangers in,
where cities crouch under cities
waiting to re-emerge

a man walks through walls,
living partly in stone 
and partly in air,
waiting for the viruses to leave

He moves out under the sea
and back
unearthing those things he values most
but paying a price,
needing to concentrate

One day he goes too far,
steps forward without thinking
then stops:

losing his grip on two domains,
he finds himself frozen between them
head in air
body in rock
unable to move

Somewhere underground
someone is laughing,
but no-one can hear him