Plotinus,[276] a Platonic philosopher, had, it is said, a familiar demon, who obeyed him from the moment he called him, and was superior in his nature to the common genii; he was of the order of gods, and Plotinus paid continual attention to this divine guardian. This it was which led him to undertake a work on the demon which belongs to each of us in particular. He endeavors to explain the difference between the genii which watch over men.
Trithemius, in his Chronicon Hirsauginse,[277] under the year 1130, relates that in the diocese of Hildesheim, in Saxony, they saw for some time a spirit which they called in German _heidekind_, as if they would say _rural genius_, _heide_ signifying vast country, _kind_, child (or boy). He appeared sometimes in one form, sometimes in another; and sometimes, without appearing at all, he did several things by which he proved both his presence and his power. He chose sometimes to give very important advice to those in power; and often he has been seen in the bishop's kitchen, helping the cooks and doing sundry jobs.
A young scullion, who had grown familiar with him, having offered him some insults, he warned the head cook of it, who made light of it, or thought nothing about it; but the spirit avenged himself cruelly. This youth having fallen asleep in the kitchen, the spirit stifled him, tore him to pieces, and roasted him. He carried his fury still further against the officers of the kitchen, and the other officers of the prince. The thing went on to such a point that they were obliged to proceed against him by (ecclesiastical) censures, and to constrain him by exorcisms to go out of the country.
I think I may put amongst the number of elves the spirits which are seen, they say, in mines and mountain caves. They appear clad like the miners, run here and there, appear in haste as if to work and seek the veins of mineral ore, lay it in heaps, draw it out, turning the wheel of the crane; they seem to be very busy helping the workmen, and at the same time they do nothing at all.
These spirits are not mischievous, unless they are insulted and laughed at; for then they fall into an ill humor, and throw things at those who offend them. One of these genii, who had been addressed in injurious terms by a miner, twisted his neck and placed his head the hind part before. The miner did not die, but remained all his life with his neck twisted and awry.