Supernatural is a dangerous and difficult word in any of its senses, looser or stricter. But to fairies it can hardly be applied, unless super is taken merely as a superlative prefix. For it is man who is, in contrast to fairies, supernatural; whereas they are natural, far more natural than he. Such is their doom.
The massive bulk of the earth does indeed shrink to insignificance in comparison with the size of the heavens.