Fire

When you're a child, your parents always tell you not to play with fire, or you'll get burned.
And most children ignore them once and manage to burn themselves a little, and then they're satisfied.

But some children don't. Those children never get burned until they've made a much larger fire thn they can handle. And then it burns them all up.

Fire has always fascinated me. It's a beautiful piece of nature, and it has so much potential.
Create and destroy. Heal and harm. Warm or burn. Run the engine of a van, or burn down the world.