Like a giant shield

it guards private minutes

with the zeal of a shining knight

and the unmoving stare of a statue.

If you have a door, that is.

You hardly pay any mind to

the steadfast open/close

and take for granted the solid plank of wood

Jim Morrison managed to immortalize.

A five-lettered noun of dissonant reassurance,

that begins and ends at the sound of a click

or bang, if you ask for it.