Buddha gathered his disciples at a lake on Gridhakuta for instruction.
His adherents sat in a circle about him eagerly awaiting his teachings.
Wordlessly Buddha reached into the muck and pulled up a single lotus flower. He then held it high for all to see.
Practically everyone was bewildered. But then the disciple Mahakashyapa began to laugh.
Finally, Buddha handed the lotus flower to Mahakashyapa and said,
“What can be said I have said to you, and what cannot be said, I have given to Mahakashyapa.”
For those who understand, no explanation is needed.
For those who do not understand, no explanation is possible.