whats the difference?

whats the difference? between black and dark??
it wouldn't really matter does it??
when your whole sky is full of dark rainy clouds..
where you won't be able to see the lights..
that were suppose to shone..
it's so dark and lonely..
the feeling of being here..
I'm lonely..
and it felts like the sky was hiding from me..
it was so sad..
the world that i know..
is now full of dark and sadness..
how lonely..
so lonely..
when i look up..
i can see nothing..
as the rain falls down..
it fell into my eyes..
it hurts..
but it'll never be..
as hurt as my heart once was..