Close your eyes and breathe out.
You are in a tunnel.
The tunnel is infinite
and goes on forever in both directions.
Look down the tunnel in one direction. What do you see or feel?
Now, look down the tunnel in the opposite direction. What do you see or feel?
Now, bring your attention to the center of the tunnel, the midpoint. What do you find here
at the center of the tunnel?
Breathe out and open your eyes.