Demon within

A demon lives among us all, deep within our soul

But it can only grow if we let it take control

It starts out small, but it spreads ever so fast

It's destruction a bit similar to an atomic blast

The black cloud of smoke will show no mercy for you

As you hold your breath and try to push through

It seeps into the pores, seeking and it shall find

One simple, but clever task to wield even the strongest mind

Forcing you down, forcing you to retreat

Lingering for eternity in the wake of your defeat

This demon has many names and feeds on pain and tears

Dream-killer some call it, but it's mostly known as Fear.