The guru sat in meditation on the riverbank when a disciple bent down to place two enormous pearls at his feet, a token of reverence and devotion.
The guru opened his eyes, lifted one of the pearls, and held it so carelessly that it slipped out of his hand and rolled down the bank into the river.
The horrified disciple plunged in after it, but though he dived in again and again till late evening, he had no luck.
Finally, all wet and exhausted, he roused the guru from his meditation: "You saw where it fell. Show me the spot so I can get it back for you."
The guru lifted the other pearl, threw it into the river, and said, "Right there!"