Cthulhu is regarded as the priest of the gods, while Dagon appears to be his subordinate.The lowest tier consists of the Elder Things and the Mi-go, both extraterrestrial races, and the Deep Ones, ocean-dwelling humanoids, which serve Cthulhu and Dagon.Next in the hierarchy is Shub-Niggurath (whom Lovecraft mentions but never describes in his stories), representing a kind of pagan fertility god.Attending Azathoth at his court are the Other Gods, mysterious beings that dance mindlessly around Azathoth's throne in cadence to the piping of a demonic flute, and Nyarlathotep, the avatar and messenger of Azathoth and the Other Gods.The mythos was never intended to be a cohesive, singular entity; instead, it should be regarded as simply a collection of ideas that can be used in separate works to provoke the same emotions.Another problem with Derleth's mythos is that the Elder Gods never appear in Lovecraft's writings; except for one or two who appear as "Other Gods", such as Nodens in Lovecraft's "The Strange High House in the Mist" (though perhaps this is an example of how "very rarely [they stir] forth"; i.e., usually never).This system left gaps which Derleth filled in by creating the beings Cthugha and Ithaqua, representing the spheres of "fire" and "air", respectively. For example, Derleth classified Cthulhu as a water elemental, but if this were so, how could he be trapped beneath the ocean and how could his psychic emanations be blocked by water?
Instead, he simply launched into writing his stories, adding matter-of-fact references to the various deities and monsters of the mythos. , a member of a separate group of deities (never expanded by Lovecraft) that were more or less benign.
The mythos is centered on the Great Old Ones, a fearsome assortment of ancient, powerful deities that once ruled the Earth.
They are presently quiescent, having fallen into a death-like sleep at some time in the distant past.
Furthermore, the Great Old Ones, or Ancient Ones, have no unified pantheon .
Indeed, the term "Ancient Ones" appears in only one Lovecraft story, "Through the Gates of the Silver Key" (moreover, the story is actually a collaboration between Lovecraft and his friend and correspondent E. Derleth also introduced the concept of elementals, tying the deities of the mythos to the four elements of "air", "earth", "fire", and "water".