Tozen At Lowes:
Tozen was smashing flower pots at Lowes when his student, a store clerk, approaches in agitation.
"Tozen! Why are you destroying these pots?"
The master shook his head.
"I have destroyed nothing. The void which constitutes the pot still remains."
The student-clerk was incredulous
"I do not see this void."
Tozen smiled "Look around you."
The clerk did as he was told.
When he looked back to Tozen he saw nothing, and was enlightened.