Prisoners of My Throat

Those words
like prisoners behind pearly white bars
captive in my throat like lyrics with no guitar
they sometimes crawl to the tip of my tongue
their hands press against invisible glass
they look at you
and they watch all the other words go past
Collapsing back down to my stomach
They wonder why they can't escape
Pulling on my heart strings crying
"Let us out or it will be too late" 
I feel their relentless nagging
as they get back up to their feet
only to be shaken down again
by the thunder of my own heart beat