flower sermon, n.Definitions

Flower Sermon (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠Zen's own story of its origin: the Buddha passing awakening to Mahakasyapa by holding up a flower and saying nothing.