Shoyoroku - Case 54: Ungan's "Great Mercy" [1]

Ungan asked Dogo, 
  "What does the Bodhisattva of the Great Mercy use so many hands and
   eyes for?"
Dogo answered,
  "It is like a person in the middle of the night reaching with his hand
   behind his head groping for his pillow."
Ungan said,
  "I understood."
Dogo said,
  "How did you understand it?"
Ungan said,
  "The whole body is hands and eyes."
Dogo said,
  "You said it very well. But you expressed only eight-tenths of it."
Ungan said,
  "How would you say it, Elder Brother?"
Dogo said,
  "The entire body is hands and eyes."

[1]: see case 89 of Hekiganroku.