Dr Jekyll and Mrs Hide

Smiling, dancing, happy
Angry, growling, crappy

I want to embrace the world
World: you know where you can be hurled!

I am up
I am down
Smiling
Then a frown
Calm
Then a whirlwind
With a halo
Then some sin

The light side of me
Clashes
With the darkest me

First off, Dr Jekyll
Then, Mrs Hide
Nothing to be done
Only option, 
To smile