“The Devil was accustomed to deceive these natives by appearing to them in the form of a lion, tiger, coyote, lizard, snake, bird, or other animal. To these appearances they apply the name _Naguales_, which is as much as to say, guardians or companions; and when such an animal dies, so does the Indian to whom it was assigned. The way such an alliance was formed was thus: The Indian repaired to some very retired spot and there appealed to the streams, rocks and trees around him, and weeping, implored for himself the favors they had conferred on his ancestors. He then sacrificed a dog or a fowl, and drew blood from his tongue, or his ears, or other parts of his body, and turned to sleep. Either in his dreams or half awake, he would see some one of those animals or birds above mentioned, who would say to him, ‘On such a day go hunting and the first animal or bird you see will be my form, and I shall remain your companion and _Nagual_ for all time.’ Thus their friendship became so close that when one died so did the other; and without such a _Nagual_ the natives believe no one can become rich or powerful.”[5-*] This province of Cerquin appears to have been peopled by a tribe which belonged to the great Mayan stock, akin to those which occupied most of the area of what is now Yucatan, Tabasco, Chiapas and Guatemala.[5-†] I shall say something later about the legendary enchantress whom their traditions recalled as the teacher of their ancestors and the founder of their nation. What I would now call attention to is the fact that in none of the dialects of the specifically Mexican or Aztecan stock of languages do we find the word _nagual_ in the sense in which it is employed in the above extract, and this is strong evidence that the origin of Nagualism is not to be sought in that stock. =3.= We do find, however, in the Nahuatl language, which is the proper name of the Aztecan, a number of derivatives from the same root, _na_, among them this very word, _Nahuatl_, all of them containing the idea “to know,” or “knowledge.” The early missionaries to New Spain often speak of the _naualli_ (plural, _nanahualtin_), masters of mystic knowledge, dealers in the black art, wizards or sorcerers. They were not always evil-minded persons, though they seem to have been generally feared. The earliest source of information about them is Father Sahagun, who, in his invaluable History, has the following paragraph: