The previous night of the fish eye test in the Mahabharata Sri Krishna gives Arjuna an important lesson.
Krishna – Climb the weighing scale carefully keep your legs properly balanced, keep your eyes focused on the fish eye.
Arjuna interrupts impatiently – If I have to do everything what will you do?
Krishna gives an enamoring reply – I will do what you are incapable of doing.
Arjuna – what is that I cannot do?
Krishna – I will keep the water steady.
The essence of the story is that we must do our actions wholeheartedly. What is Bhagavan capable of doing is beyond the comprehension of our mind.