KOAN

For example, What is the sound of one hand clapping?

• Has a dog Buddha-nature or not? e.g.

• What is the sound of one hand clapping?, say

• When you can do nothing, what can you do?, e.g.

• Aid to enlightenment

• Contemplation of the sound of one hand clapping, e.g.

• Meditation question

• Paradoxical question, in Zen

• Paradoxical riddle

• Puzzling, often paradoxical statement or story, used in Zen Buddhism as an aid to meditation and a means of gaining spiritual awakening

• Riddle from a master

• Zen master's question

• Zen master's riddle

• Zen paradox

• Zen puzzle

• Zen question

• Zen riddle