Kauai Bamboo

“A monk asked Ts'ui-wei about the meaning of Buddhism.  Ts'ui-wei answered: "Wait until there is no one around, and I will tell you."  Some time later the monk approached Ts'ui-wei again, saying, 'There is nobody here now.  Please answer me.'  Ts'ui-wei led him out into the garden and went over to the bamboo grove, saying nothing.  Still the monk did not understand, so at last Ts'ui-wei said, 'Here is a tall bamboo; there is a short one!'” ― Zen Parable