ask me anything any time. this stuff is not straightforward. here's the koan text.

Once, when the World-Honored One in ancient times was upon Vulture Peak, he held up a flower before the assembly of monks. At this all were silent. The Venerable Kashyapa alone broke into a smile. The World-Honored One said, “I have the all-pervading Eye of the True Dharma, the Secret Heart of Incomparable Nirvana, the True Aspect of Formless Form. It does not rely on letters and is transmitted outside the sutras. I now hand it on to Mahakashyapa.”