From the film, Apocalypto:
The Man said, "I want to have good sight."
The vulture replied, "You shall have mine."
The Man said, "I want to be strong."
The jaguar said, "You shall be strong like me."
The Man said, "I long to know the secrets of the earth."
The serpent replied, "I will show them to you."
And so it went with all the animals. And when the Man had all the gifts they could give…he left.
Then the owl said to the other animals, "Now the Man knows much and is able to do many things. Suddenly I am afraid." The deer said, "The Man has all that he needs. Now his sadness will stop."
But the owl replied, "No. I saw a hole in the Man deep like a hunger he will never fill. It is what makes him sad and what makes him want. He will go on taking and taking. Until one day the world will say: ‘I am no more and I have nothing left to give.’"
Do not attempt to fill the hole. Instead, empty it.