When therefore they had rowed about twenty-five or thirty stadia,{25 to 30 stadia is about 5 to 6 kilometers or about 3 to 4 miles} they saw Jesus walking on the sea, and drawing near to the boat; and they were afraid.

 That is why Jesus can satisfy the eternal hunger. He is sealed by God, he is God's truth incarnate and it is God alone who can truly satisfy the hunger of the soul which he created. 