The method of teaching by symbolic acts, such as the plucking of a
flower, was extensively used by the Zen masters. For example, when a
disciple asked Enkwan a question about the nature of Buddha, he
answered, Bring me a clean bowl. When the priest brought the bowl, the
master said, Now put it back where you found it. He signified that the
priest’s questionings must return to their proper place, the
questioner’s heart, from which alone spiritual knowledge can be
obtained. Dai Ketsugi Kyoh.