Once upon a time, sage Narada came into the presence of the Lord. The Lord asked him, "Narada, in all your travels through the world have you been able to discover the principal secret of the universe? Have you been able to understand the mystery behind this world? Everywhere you look you see the five great elements, earth, water, fire, air and ether. Which do you think occupies the first place? Of everything that is to be found in the universe what is the most important of all?"

Narada thought for awhile and then answered, "Lord, of the five elements the densest, biggest and most important is surely the earth element." The Lord answered, "How can the earth element be biggest when three-fourths of the earth is covered by water and only one-fourth is land? Such a big earth is being swallowed by the water. What is bigger, the thing that is being swallowed or that which is swallowing it?" Narada acknowledged that water must be bigger because it had swallowed the Earth.

The Lord continued his questioning. He said, "But Narada, we have the ancient tale that when the demons hid in the waters, then in order to find them, a great sage came and swallowed up the whole ocean in one gulp. Do you think the sage is greater or the ocean is greater?" Narada had to agree that without doubt the sage was certainly greater than the water he had swallowed. "But," continued the Lord, "it is said that when he left his earthly body, this same sage became a star in the heavens. Such a great sage is now appearing only as a small star in the vast expanse of the sky. Then what do you think is bigger; is it the sage or is it the sky that is bigger?" Narada answered, "Swami, the sky is surely bigger than the sage." Then the Lord asked, "Yet we know that one time when the Lord came as avatar and incarnated in a dwarf-body, he expanded himself so hugely that he was able to cover both the earth and the sky with his one foot. Do you think God's foot is bigger or the sky?" "O, God's foot is certainly bigger," Narada replied. But, the Lord asked, "If God's foot is so big, then what about his infinite form?"

Now, Narada felt that he had come to the final conclusion. "Yes," he said exultantly, "the Lord is the biggest of all. He is infinite beyond measure. In all the worlds there is nothing greater than he." But the Lord had still one more question. "What about the devotee who has been able to imprison this infinite Lord within his own heart? Now tell me, Narada, who is greater, the devotee who has the Lord locked up or the Lord who is locked up by the devotee?" Narada had to admit that the devotee was even greater than the Lord, and that, therefore, the devotee must rank first in importance over everything, surpassing even the Lord.

Source: Sai Baba Gita, p. 12