The firm belief in magic which underlies all this tale might perhaps be thought to be inappropriate to the enlightenment of Greek times. We have seen how in the earliest tales magic is a mainspring of the action, and it is at first sight surprising that its sway should last through so many thousands of years. But there may well have been a recrudescence of such beliefs, along with the revival of interest in the earlier history. The enormous spread and popularity of Gnosticism--the belief in the efficacy of words and formulas to control spirits and their actions--in the centuries immediately after this, shows how ingrained magic ideas were, and how ready to sprout up when the counterbalancing interests of the old mythology were gone, and their place taken by the intangible spirituality of Platonism and the early Christian atmosphere. A most Egyptian turn is given where the priest bargains for a large payment for his funeral, and to be buried as a rich priest. The enclosing of the magic roll in a series of boxes has many parallels. In an Indian tale we read: "Round the tree are tigers and bears and scorpions and snakes; on the top of the tree is a very fat great snake; on his head is a little cage; in the cage is a bird; and my soul is in that bird" ("Golden Bough," ii. 300). In Celtic tales the series-idea also occurs. The soul of a giant is in an egg, the egg is in a dove, the dove is in a hare, the hare is in a wolf, and the wolf is in an iron chest at the bottom of the sea ("Golden Bough," ii. 314). The Tartars have stories of a golden casket containing the soul, inside a copper or silver casket ("Golden Bough," ii. 324). And the Arabs tell of a soul put in the crop of a sparrow, and the sparrow in a little box, and this in another small box, and this put into seven other boxes, and these in seven chests, and the chest in a coffer of marble ("Golden 10 Bough," ii. 318). The notion, therefore, of a series of boxes, one enclosing another, and the whole guarded by dangerous animals, is well known as an element in tales. The late date is here shown by the largest and least precious of the boxes being of iron, which was rarely, if ever, used in Ramesside times, and was not common till the Greek age. The magic engineering of Na-nefer-ka-ptah is very curious. The cabin or air-chamber of men in model, who are let down to work for him, suggests that Egyptians may have used the principle of a diving-bell or air-chamber for reaching parts under water. Certainly the device of raising things by dropping down sand to be put under them is still practised. An immense sarcophagus at Gizeh was raised from a deep well by natives who thrust sand under it rammed tight by a stick, and by this simple kind of hydraulic press raised it a hundred feet to the surface. In this way the magic men of Na-nefer-ka-ptah raised up the chest when they had discovered it by means of the sand which he poured over from the boat.