But both of them agree on one general appellation of them, “demons.” As if the dead of whom they dreamed were not inhabitants of their own brain, but of the air, or of heaven, or hell; not phantasms, but ghosts; with just as much reason as if one should say, he saw his own ghost in a looking-glass, or the ghosts of the stars in a river; or call the ordinary apparition of the sun, of the quantity of about a foot, the “demon,” or ghost of that great sun that enlighteneth the whole visible world: and by that means have feared them, as things of an unknown, that is, of an unlimited power to do them good or harm; and consequently, given occasion to the governors of the heathen commonwealths to regulate this their fear, by establishing that “demonology” (in which the poets, as principal priests of the heathen religion, were especially employed or reverenced), to the public peace, and to the obedience of subjects necessary thereunto, and to make some of them good “demons,” and others evil; the one as a spur to the observance, the other as reins to withhold them from violation of the laws.