Mouse

It seems that there was a mouse who was always afraid of the cat. A sage passed by and the mouse told him of his problem. The sage turned the mouse into a cat. Now it was afraid of the dog. So the sage turned it into a dog. Now it was afraid of man. The sage once again turned it into a man. Now it was afraid of God. At this stage the sage got fed up and turned the man back into a mouse saying, "Nothing is going to be of any help to you as in your heart you are still a mouse."