The Blackboard-a poem

Here I am,
Sealed in a room windowless and door less.
Surrounded by darkness and a piercing silence,
And facing a blackboard.

As I stare at it
The board becomes full of words:
Lust, greed, lying and more.
These are the sins of my life.

The words are written in black,
A black only I can see.
Then the words seem to jump from the board,
And I lower my head in shame.

Suddenly a light comes on,
Bright and illuminating like floodlights,
Clear as crystal, and white as snow.
Hope instantly enters my heart.

I pray to God to forgive me,
And cleanse my heart of black sin.
Then suddenly the dark words on the board disappear,
To be replaced by one white word: forgiven.