The Riddle

I cannot tell truth, I cannot lie,
I cannot live, and I cannot die.
I make sound, but cannot be heard,
I create lines, but not words.
I am everywhere, I am nothing,
I am nowhere, I am something.
I am salvation, without breath,
I am damnation, without death.
I am yours, that you cannot use,
I am my own, that I abuse.
I am soul, but I am wrong,
I am heart, within song.
I am rythym, I am flow,
I am known, but no one knows.
What am I?
I am the voice.