Rule with one wing

I close myself off
and look through the glass,
how have I stayed pure
in the past?
Can I run from demons inside
or can I be excorsied
with holy water or
with the fire?
I look around the dark
I look through the glass
all I see are shades
and wraiths haunting me.
I long to be free and long to fly high
but can you, with one wing, rule the sky?