The “Realm” of the One cannot exactly be considered a Realm with things inside it; because it is prior to Ousia (Being). Rather, it holds a negative existence. That does not mean it doesn’t exist, as things can exist without Being; but rather it exists in a way we do not know existence.

Residing in this non-Realm is the One; which is paradoxically understood to have three moments, the Ineffable One (which exists nowhere at all), the Simply One (which pre-exists everywhere) and the One-Extent/One-Being, which give rise to Aion, the source of Being.


I. Intelligible Cosmos

The One-Being is reflected into the Intelligible Cosmos as Aion, which acts as its source. It is in the Intelligible Cosmos that we see the Being-Life-Intellect Triad (also called the Intelligible Triad), which are representative of each Realm in these Cosmos.

  • First is the Intelligible Realm, where Ousia (Being) is derived from.
  • Following this is the Intelligible-Intellective Realm, where Life is no longer an aspect of Being but rather Life in itself.
  • Finally is the Intellective Realm, where the Intelligibles are grasped by Nous/Celestial Demiurge; identified as Zeus-Helios.

The Intelligible Triad is what ultimately gives rise to all beings, their lives and intellects at lower levels in a rich interweaving of the three parts of the triad at three different levels.


Intelligible Realm

The Intelligible Realm, also called the Noetic Realm, is the first of the spiritual realms in the Intelligible Cosmos. It is at the beginning of this realm that the One-Being rests as its Monad (Source) in the form of the Aion, who rules over this realm as its source.

This realm is the part of the Triad that belongs to Being.


Intelligible-Intellective Realm

The Intelligible-Intellective Realm, also called the Noetic-Noeric Realm, is the second of the spiritual realms in the Intelligible Cosmos. This realm acts as a bridge between the Intellective Realm and the Intelligible Realm.

The Intelligible-Intellective Realm isn’t merely a bridge, however. This is the realm where the quality of Life carries dominion. Life has already formed in the Intelligible Realm, but merely as a sub-quality of Being. Here, though, we find Life as Life; not as an aspect of Noetic Being or Noeric Intellect. As such, this part of the Triad belongs to Life.

It is at this level the “monads of the Forms,” the Intelligible-Intellective Gods, are found.


Intellective Realm

The Intellective Realm, also called the Noeric Realm, is where Intelligible reality is grasped by the divine mind, Nous, also known as the Celestial Demiurge. Obviously, this is the Intellect part of the Triad.

It is here that the Forms (also called idea and eidos), the realities which the physical world reflects like a shadow, are found at this level.

The Intellective Realm is where the quality of Intellect is foremost. The lowest portion of the Intellective, which contains intellect of Intellect, is Nous, the divine Mind, also known as the Celestial Demiurge. This lowest part of the overall Intellective Realm is also the top-most portion of the next hypostasis, the Psychic Cosmos.


II. Psychic Cosmos

The Psychic Cosmos, sometimes referred to as Heaven, are the last of the spiritual realms above the Generative Cosmos.


Whole Soul

Here we may see Nous is reflected into this realm and becomes the monad (source) of the Soul, known as the unparticipated Whole Soul, also known as the Essential Living Being. The Whole Soul is “transcendent and hypercosmic and independent and exerting authority over all,” and “imparticipable and placed over all the souls in the cosmos as their monad.” (Iamblichus In Timaeus, fr. 50) Following the established pattern, the participated form of the Whole Soul is the World Soul.


World Soul

The Whole Soul exists as a whole in the form of the World Soul.

The creation of the World Soul’s body is described in the divine Plato’s dialogue the Timaeus in a cosmogonic myth. Here the World Soul is described as being modeled after Aion and is given the form of the Greek letter chi (Χ), holding within itself the powers of Sameness and Difference, together with their mean or mixture, which are reflections of the Dyad in the realm of the One. The bands of the X are brought together as a sphere composed of two circles which cross, with the outer circle of Sameness rotating horizontally to the right, while the inner circle of Difference turning diagonally to the left. The circle of difference is divided into seven sections, carrying the pneumatic vehicles of the Planetary/Encosmic Gods.

The Whole Soul is indivisible, and is an image of Aion since Soul is connected to it, being diffused evenly and throughout from the center to the edges.



The World Soul in participation are individual souls. Soul is produced by and part of the World Soul, and since the World Soul is an image of Aion, the human soul thus exists within an image of an image of Aion.


III. Generative Cosmos

The Generative Cosmos, also called the Phenomenal Cosmos, are the created cosmos.


Hypercosmic Realm

The Hypercosmic Realm has very little known about it. We do know, however, that it cannot be conceived of through the human mind. This doesn’t mean it cannot be thought of, of course, but merely that its incomprehensibility means we are unable to think of it. The Hypercosmic Realm may be understood as mirroring the Intelligible Realm in the created cosmos, and is home to the Hypercosmic Gods.


Hyper-Encosmic Realm

The Hyper-Encosmic, also known as the “Liberated Realm,” is a reflection of the Intelligible-Intellective Realm, connecting the upper Hypercosmic Realm and lower Encosmic Realm as a mean. It is home to the Hyper-Encosmic or “Liberated” Gods.


Encosmic Realm

The Encosmic Realm, home of the Encosmic/Visible Gods, consists of the spheres of the fiery and eternal aether, which may include the fixed stars, the seven planets, and the Physical or “Sub-Lunar” Realm.


Sub-Lunar Realm

The Sub-Lunar Realm, literally “Realm under the moon” or “Realm under the heavens,” is our own world, which is itself part of the Encosmic Realm. It is ruled by the Sub-Lunar Demiurge, Asklepios / Dionysos.

Iamblichus divides the Sub-Lunar Realm into three sections:

  • The aether, ruled by Kronos.
  • The air, ruled by Rhea.
  • The sea or water, ruled by Phorcys.

The world must be understood not to be evil or the cause of evil. In Plato’s Republic, the famous Allegory of the Cave represents the physical world as the cave and its chains; participating in reality but to a lesser extent. It is the very last of the cosmos, and thus is the realm that though participatory in the Good of the One, does so the least; but regardless is still participated in the Good of the One.



Afonasin, Eugene, John Dillon, and John F. Finamore. Iamblichus and the Foundations of Late Platonism. Leiden: Brill, 2012.

Ekklesia Neoplatonismos Theourgia. “Ekklesia Neoplatonismos Theourgia Catechism.” Ekklesia Neoplatonismos Theourgia. Accessed July 17, 2017.

Flavius Claudius Iulianus Augustus, and Wilmer Cave (France) Wright. The Works of the Emperor Julian. Cambridge, MA: Harvard University Press, 2006.

Iamblichus. De Anima. Translated by John F. Finamore and John M. Dillon. Atlanta: Society of Biblical Literature, 2002.

Iamblichus. De Mysteriis. Translated by Emma C. Clarke, John M. Dillon and Jackson P. Hershbell. Atlanta: Society of Biblical Literature, 2003.

Kupperman, Jeffrey S. Living Theurgy: A Course in Iamblichus’ Philosophy, Theology and Theurgy. London: Avalonia, 2014.

Sallustius, “On the Gods and the Cosmos”, 4th Century AD, accessed May 17, 2017,

Shaw, Gregory. Theurgy and the Soul: The Neoplatonism of Iamblichus. 2nd Edition. University Park, PA: Pennsylvania State University Press, 2015.