Good vs. Evil

What's happening to this head of mine?
Getting caught up in darkness
It isn't like me
But it's been me all along

What's happening to this heart of mine?
Consumed with malice
I can't be like this
But it's what I've always been

One side I am good
An angel, in fact
The other, I'm a demon
A dark prince, if you will

Are both sides fighting for control
Or do I have another purpose?
Have both sides co-exist in peace
Because it's not something we can choose

Maybe before, but I've clearly made my choice
What is there to lose?
With so much of what's ours taken away
We have so much to gain