They should disappear

They are the pain.
They bring hatred everywhere.
They are the darkness.
They prevent us from living.
They are nothing
that's really worth attention.
They build castles 
in which the air is poisoned.
Their eyes bring suffering.
Their letters are intense and weird.
They should be exhausted.
They cannot be overcome by love
but should be forgotten.

I've seen the light of the North in your eyes
and I wait to hold your hand.