Tapping

“suddenly there came a tapping, as of someone gently rapping, rapping at my chamber door.”

Deliver a tiny tap to a very large building

Propagate a wave

Now it returns to the source;

Tap again at that precise moment

The wave goes out again with more energy,

Again and again…

Now the building sways as if in an earthquake? And all from the most gentle of taps.

Advertisements