“According to the doctrine of Proclus, the uppermost regions from the zenith of the universe to the moon belonged to the gods or planetary spirits, according to their hierarchies and classes. The highest among them were the twelve uper-ouranioi, or supercelestial gods, having whole legions of subordinate demons at their command.
They are followed next in rank and power by the egkosmioi, the intercosmic gods, each of these presiding over a great number of demons, to whom they impart their power and change it from one to another at will. These are evidently the personified forces of nature in their mutual correlation, the latter being represented by the third class or the “elementals” we have just described.
Further on he shows, on the principle of the Hermetic axiom – of the types, and prototypes – that the lower spheres have their subdivisions and classes of beings as well as the upper celestial ones, the former being always subordinate to the higher ones.
He held that the four elements are all filled with demons, maintaining with Aristotle that the universe is full, and that there is no void in nature.
The demons of the earth, air, fire, and water are of an elastic, ethereal, semi-corporeal essence. It is these classes which officiate as intermediate agents between the gods and men.
Although lower in intelligence than the sixth order of the higher demons, these beings preside directly over the elements and organic life. They direct the growth, the inflorescence, the properties, and various changes of plants.
They are the personified ideas or virtues shed from the heavenly ule into the inorganic matter; and, as the vegetable kingdom is one remove higher than the mineral, these emanations from the celestial gods take form and being in the plant, they become its soul.”
H. P. Blavatsky