SIMPLE:
Today I am thankful for the darkness, for without it, you can never truly appreciate the light.

Where do you experience the dark?
What does it teach you?
How do these lessons affect your attitudes, thoughts, behaviors?
Do they affect you at all?
Do you want them to?
Do you want them to affect you differently than they do?
How can you bring about the change you desire?
What is keeping you from achieving that change?
What is keeping you from the light?
Where have you experienced the light?
Do you appreciate the light?
Why?