Birthed in a Mind

It grows from nothing,
it becomes its own.
It starts as it ends:
solitary and alone.
It's birthed in a mind
out of sheer imagination
sometimes good,
sometimes with hesitation.
It's the life force behind
action to be taken.
It's rarely able
to be conquered or shaken
but it drives a life
even if only a minute
as it throws a body
into the middle, in it.