I’m walking toward a wall. The wall is solid. It stretches upward, leftward, and rightward as far as I can see. It looks like the Great Wall of China.
The closer I get, the more slowly I walk. Small steps turn to baby steps turn to walking in place. If I don’t turn around, I’m going to break my nose on the wall.
I keep walking. A crack appears in the wall. As I walk, it gets taller and wider. I glimpse what’s on the other side.
I sit down, pen in hand, and start writing. The other side gets clearer and clearer. When I look back, I can’t see the wall at all.