"The mouse, they make a hole in the field for his living comfortably.
You have seen the holes in the field? And the big snake, they take advantage of these holes.
They enter into it and eat the mouse, and live comfortably.
So the mouse makes the comfortable place for the snake.
The snake's business is to enter and live comfortably."
Srila Prabhupada Letter Geneva, May 31, 1974