Meanwhile the motive usually assigned to fairies in northern stories is that of preserving and improving their race, on the one hand by carrying off human children to be brought up among the elves and to become united with them, and on the other hand by obtaining the milk and fostering care of human mothers for their own offspring. Doubts have been expressed by the German poet and mythologist, Karl Simrock, whether this was the primitive motive. He suggests that originally these spirits were looked upon as wholly beneficent, and even the theft of children was dictated by their care for the best interests of mankind. Nor does he hesitate to lay it down that the selfish designs just mentioned were first attributed to them when with growing enlightenment the feeling manifested itself that the kindly beings were falling into decay.[68]
It might be sufficient to reply that no spiritual existences imagined by men in a state of civilization such as surrounded our Celtic and Teutonic forefathers were ever regarded as unswervingly benevolent: caprice and vindictiveness, if not cruelty, are always elements of their character. Beyond this general consideration, however, there is a further and conclusive answer in the fact that there is no warrant in tradition for the supposition that could we penetrate to the oldest strata of mythical belief we should not discover selfish designs imputed to "the good people." The distinguished commentator himself is bound to admit that the belief in their need of human help is entwined in the very roots of the Teutonic myths. It is, indeed, nothing but the mediæval and Teutonic form of tenets common to all the nations upon earth. The changeling superstition and the classic stories of children and adults beloved by gods of high and low degree are consistent with this belief, and inseparable from it. The motive is so far comprehensible: what is wanted is to know whether any special relations, such as are pointed at by the Greek epithet _Drakos_, were held to exist between the mysterious world and newly-born babes which would render the latter more obnoxious to attack than elder children or adults; or whether, as I have put it at the beginning of this chapter, their helplessness alone suggested their exceeding danger. To solve the riddle we must wait for a larger accumulation of documents.[69]