Sir James George Frazer (18541941). The Golden Bough. 1922.
With the help of some obliging animals, the hero made himself master of the precious egg and slew the giant by merely striking it against the mole on his right breast. Similarly in a Breton story there figures a giant whom neither fire nor water nor steel can harm. He tells his seventh wife, whom he has just married after murdering all her predecessors, I am immortal, and no one can hurt me unless he crushes on my breast an egg, which is in a pigeon, which is in the belly of a hare; this hare is in the belly of a wolf, and this wolf is in the belly of my brother, who dwells a thousand leagues from here. So I am quite easy on that score. A soldier contrived to obtain the egg and crush it on the breast of the giant, who immediately expired. In another Breton tale the life of a giant resides in an old box-tree which grows in his castle garden; and to kill him it is necessary to sever the tap-root of the tree at a single blow of an axe without injuring any of the lesser roots. This task the hero, as usual, successfully accomplishes, and at the same moment the giant drops dead.
The notion of an external soul has now been traced in folk-tales told by Aryan peoples from India to Ireland. We have still to show that the same idea occurs commonly in the popular stories of peoples who do not belong to the Aryan stock. In the ancient Egyptian tale of The Two Brothers, which was written down in the reign of Rameses II., about 1300 B.C., we read how one of the brothers enchanted his heart and placed it in the flower of an acacia tree, and how, when the flower was cut at the instigation of his wife, he immediately fell down dead, but revived when his brother found the lost heart in the berry of the acacia and threw it into a cup of fresh water.
In the story of Seyf el-Mulook in the Arabian Nights the jinnee tells the captive daughter of the King of India, When I was born, the astrologers declared that the destruction of my soul would be effected by the hand of one of the sons of the human kings. I therefore took my soul, and put it into the crop of a sparrow, and I imprisoned the sparrow in a little box, and put this into another small box, and this I put within seven other small boxes, and I put these within seven chests, and the chests I put into a coffer of marble within the verge of this circumambient ocean; for this part is remote from the countries of mankind, and none of mankind can gain access to it. But Seyf el-Mulook got possession of the sparrow and strangled it, and the jinnee fell upon the ground a heap of black ashes. In a Kabyle story an ogre declares that his fate is far away in an egg, which is in a pigeon, which is in a camel, which is in the sea. The hero procures the egg and crushes it between his hands, and the ogre dies. In a Magyar folk-tale, an old witch detains a young prince called Ambrose in the bowels of the earth. At last she confided to him that she kept a wild boar in a silken meadow, and if it were killed, they would find a hare inside, and inside the hare a pigeon, and inside the pigeon a small box, and inside the box one black and one shining beetle: the shining beetle held her life, and the black one held her power; if these two beetles died, then her life would come to an end also. When the old hag went