To myself it rather looks as if all impressions had their _nunuai_, real, bodiless, persistent, after-images; that the soul is the complex of all of these _nunuai_; that there is in the universe a kind of magical other, called _mana_, possessed, in different proportions, by different men, _Vui_, _tamate_, and material objects, and that the _atai_ or _ataro_ of a man dead, his ghost, retains its old, and acquires new _mana_.[19] It is an odd kind of metaphysic to find among very backward and isolated savages. But the lesson of Melanesia teaches us how very little we really know of the religion of low races, how complex it is, how hardly it can be forced into our theories, if we take it as given in our knowledge, allow for our ignorance, and are not content to select facts which suit our hypothesis, while ignoring the rest. On a higher level of material culture than the Melanesians are the Fijians. Fijian religion, as far as we understand, resembles the others in drawing an impassable line between ghosts and eternal gods. The word _Kalou_ is applied to all supernal beings, and mystic or magical things alike. It seems to answer to _mana_ in New Zealand and Melanesia, to _wakan_ in North America, and to _fée_ in old French, as when Perrault says, about Bluebeard's key, 'now the key was _fée_.' All Gods are _Kalou_, but all things that are _Kalou_ are not Gods. Gods are _Kalou vu_; deified ghosts are _Kalou yalo_. The former are eternal, without beginning of days or end of years; the latter are subject to infirmity and even to death.[20] The Supreme Being, if we can apply the term to him, is Ndengei, or Degei, 'who seems to be an impersonation of the abstract idea of eternal existence.' This idea is not easily developed out of the conception of a human soul which has died into a ghost and may die again. His myth represents him as a serpent, emblem of eternity, or a body of stone with a serpent's head. His one manifestation is given by eating. So neglected is he that a song exists about his lack of worshippers and gifts. 'We made men,' says Ndengei, 'placed them on earth, and yet they share to us only the under shell.'[21] Here is an extreme case of the self-existent creative Eternal, mythically lodged in a serpent's body, and reduced to a jest.