Night Terrors

Doubts attack
in deepest night,
winging their way in
on nightmares,
intrinsically dangerous.
I scream,
soundlessly,
but they never hear my cries,
never hear me beg for mercy.
I have no friends
in the shadows...
only time.
If I can endure,
if I can withstand,
if I can hope...
Time will save me.
As dawn's rays signal
the arrival of early morn,
I taste victory.
I have survived another night.

Author's note ▼

Written for "Invalid Item" 
Prompt: Light and Dark...
Word(s) to Include: intrinsic (or any derivatives of these words)
Forbidden Word(s): light, dark, candle, flame, dead, death (or any derivatives, compound or hyphenations of these words)
Additional Parameters: Must be at least 20 lines. No rhyming. Remember, do not use forbidden words ANYWHERE, including title or title or the brief description.