“Well, what strength is in thee?”
“I am so strong that I could turn the whole castle over with one hand.”
“Then drink more.”
Ivan drank again.
“What strength is in thee now?”
“If I wished, I could turn the whole world over.”
“That is very great strength. Move these tubs from one place to the other: put that on the right to the left, that on the left take to the right.”
Ivan interchanged the tubs.
“Thou seest, my dear son, in one tub is water of strength, in the other water of weakness. Whoso drinks from the first will be a strong, mighty hero; whoso drinks from the second will grow weak altogether. Whirlwind always drinks the water of strength and puts it on the right side; so we must deceive him, or thou canst never overcome him.”
They returned to the castle.