The Librarian shakes his head minutely. "This is the kind of seemingly precise question that is in fact very profound, and that pieces of software, such as myself, are notoriously clumsy at. Allow me to quote from Kramer, Samuel Noah, and Maier, John R. Myths of Enki, the Crafty God . New York, Oxford: Oxford University Press, 1989: ‘Religion, magic, and medicine are so completely intertwined in Mesopotamia that separating them is frustrating and perhaps futile work. . . . [Sumerian incantations] demonstrate an intimate connection between the religious, the magical, and the esthetic so complete that any attempt to pull one away from the other will distort the whole.' There is more material in here that might help explain the subject."