As generation succeeded generation and the young received their allotment of lore from the old, these stories became fixed so firmly in the minds of the people that they were carried with them at the scattering of the tribes, told and retold in the new-found homes, and modified to suit conditions of life in strange lands the wanderers came to inhabit; and they still survive as present-day fairy tales. There are various theories of how these old beliefs came to be disseminated, how it happened that tales supposed to be indigenous to Finland or Madagascar are found in slightly different dress among the tribes of Central Africa and in other sections of the world remote from each other; but no matter how much folklorists disagree as to the process through which the tales evolved to their present form, they do not differ as to their significance, and whether they accept the Aryan theory promulgated by Max Müller or the totemistic theory of Andrew Lang, they unite in a belief that these ancient tales represent the religion of primitive man, a religion growing out of fear of the unknown.
Always it was by the lips of the story-teller that the legends were kept alive. It was his mission to teach children the tales their fathers knew, and as the race evolved toward civilization he gave them something besides nature myths. He recounted and reiterated the achievements of the heroes of his people until youths who heard were fired with desire to emulate. Because he was deemed a man of supernal powers, his words were believed; consequently he created the ideals of the age in which he lived, and just as his own standards were fine or base, so the ideals for which he was responsible came to be high or low. Fortunately for the world, however, these old-time narrators were wiser than their fellows. They were poets and dreamers who saw life through eyes vision clear. They glorified virtue and deprecated vice, taught that right triumphs over wrong and that sinning brings inevitable punishment, and explained in a crude way the workings of the law of compensation. They fired men to achievement just as they fired boys with desire to emulate the heroes of whom they told, and as centuries passed and they grew in skill and power, their tales came to be the inspiration of some of the most thrilling chapters in the annals of man. Alexander the Great declared that the lays of a wandering bard, Homer, made him thirst for conquest. In Germany, in the twelfth century, the influence of a penniless gleeman, Walther von der Vogelweide, was greater than that of the Pope. There was no more puissant man in Ireland when Ireland was in its golden day and Tara in its glory than the low-born minstrel, Brian of Fermanagh; and the Crusades, which recreated Europe by the introduction of Eastern culture and the breaking down of old traditions, might never have been undertaken but for tales of defilement of holy places from the lips of Peter the Hermit. Storytellers every one of them, swaying their fellows and making history, subjects of kings and nobles, yet often mightier than the masters who held their destinies in their hands.