Paracelsus argues from his reading of the Biblical
creation narrative that man needs to use philosophy to gain knowledge about the natural world, or he will not be able to understand Christ and appreciate the Bible. The natural world contains many strange things, including elemental beings corresponding to the four
classical elements. These he calls spirit-men, and he gives several names for each. Those who live in
water, he calls nymphs, water people, or
undines. Those who live in
air, he calls forest people, sylvestres,
sylphs, air people, or wind people. Those who live in
earth, he calls mountain people, earth men,
gnomes, or pygmies. Those who live in
fire, he calls
salamanders, fire people, aetnans (a name that references
Mount Etna), or vulcans. He dismisses the conventional Christian view that elemental beings are devils, instead arguing that they are significant parts of God's creation, and studies them like he studied the rest of the natural world. Each of the four types of people can give birth to
monsters. Paracelsus makes an analogy between this and the then-popular belief that comets were a special form of a star. The monsters can take many forms, and like comets they are powerful omens. Monsters produced by the Nymphs include
sirens and
sea monks.
Giants are monsters from the sylphs, while
Will-o'-the-wisps are from the vulcans, and
dwarfs are from the mountain people. He writes that will-o-the-wisps signify the destruction of the monarchy, giants signify great disasters, dwarfs signify poverty among the people, and Sirens the downfall of princes and lords, or the rise of sects or factions. ==Publication==