How Is It Possible For The Greatest To Expand Into Everyone

"As the Supreme Personality of Godhead, You have taken birth from my abdomen. O my Lord, how is that possible for the supreme one, who has in His belly all the cosmic manifestation? The answer is that it is possible, for at the end of the millennium You lie down on a leaf of a banyan tree, and just like a small baby, You lick the toe of Your lotus foot." (Shrimad Bhagavatam, 3.33.4)