Hebdomad

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Hebdomad (Ancient Greek : ἑβδομάς) may refer to:

Hippocratic Corpus literary work

The Hippocratic Corpus, or Hippocratic Collection, is a collection of around 60 early Ancient Greek medical works strongly associated with the physician Hippocrates and his teachings. Even though it is considered as a singular corpus that represents Hippocratic medicine, they vary in content, age, style, methods, and views practiced; therefore, authorship is largely unknown. Hippocrates began society's development of medicine, through a delicate blending of the art of healing and scientific observations. The Hippocratic Corpus became the foundation for which all future medical systems would be built.

Iamblichus Syrian philosopher

Iamblichus was a Syrian Neoplatonist philosopher of Arab origin. He determined the direction that would later be taken by Neoplatonic philosophy. He was also the biographer of Pythagoras, a Greek mystic, philosopher and mathematician.

Proclus Lycaeus, called the Successor, was a Greek Neoplatonist philosopher, one of the last major classical philosophers. He set forth one of the most elaborate and fully developed systems of Neoplatonism. He stands near the end of the classical development of philosophy, and was very influential on Western medieval philosophy.

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In the Platonic, Neopythagorean, Middle Platonic, and Neoplatonic schools of philosophy, the demiurge is an artisan-like figure responsible for fashioning and maintaining the physical universe. The Gnostics adopted the term "demiurge". Although a fashioner, the demiurge is not necessarily the same as the creator figure in the monotheistic sense, because the demiurge itself and the material from which the demiurge fashions the universe are both considered to be consequences of something else. Depending on the system, they may be considered to be either uncreated and eternal or the product of some other entity.

Gnosticism is a modern name for a variety of ancient religious ideas and systems, originating in Jewish-Christian milieux in the first and second century AD. These systems believed that the material world is created by an emanation or 'works' of a lower god (demiurge), trapping the divine spark within the human body. This divine spark could be liberated by gnosis, spiritual knowledge acquired through direct experience. Some of the core teachings include the following:

  1. All matter is evil, and the non-material, spirit-realm is good.
  2. There is an unknowable God, who gave rise to many lesser spirit beings called Aeons.
  3. The creator of the (material) universe is not the supreme god, but an inferior spirit.
  4. Gnosticism does not deal with "sin," only ignorance.
  5. To achieve salvation, one needs gnosis (knowledge).

The concept of an Ogdoad appears in Gnostic systems of the early Christian era, and was further developed by the theologian Valentinus.

In Dungeons & Dragons, the fantasy role-playing game, Mount Celestia or more fully, the Seven Mounting Heavens of Celestia, or even the Seven Heavens is a lawful good-aligned plane of existence. It is one of a number of alignment-based Outer Planes that form part of the standard Dungeons & Dragons (D&D) cosmology, used in the Planescape, Greyhawk and some editions of the Forgotten Realms campaign settings.

The Basilidians or Basilideans were a Gnostic sect founded by Basilides of Alexandria in the 2nd century. Basilides claimed to have been taught his doctrines by Glaucus, a disciple of St. Peter.

The Sethians were one of the main currents of Gnosticism during the 2nd and 3rd century CE, along with Valentinianism. It originated in the second-century CE as a fusion of two distinct Hellenistic Judaic philosophies, and was influenced by Christianity and Middle Platonism.

The Bruce Codex is a gnostic manuscript acquired by the British Museum. In 1769, James Bruce purchased the codex in Upper Egypt. It was transferred to the museum with a number of other Oriental texts in 1842. It currently resides in the Bodleian Library, where it has been since 1848.

In the Dungeons & Dragons role-playing game, archons are a type of creature. In 1st and 2nd edition, they are powerful lawful good creatures from the upper planes, and in 3rd edition they are celestials. These creatures are sent by higher powers striving for good to aid in battle against the forces of evil. In 4th edition, the term archon instead refers to elemental soldiers of chaos and destruction.

Neoplatonism and Gnosticism

Gnosticism refers to a collection of religious groups originating in Jewish religiosity in Alexandria in the first few centuries CE. Neoplatonism was a school of Hellenistic philosophy that took shape in the 3rd century, based on the teachings of Plato and some of his early followers. While Gnosticism was influenced by Middle Platonism, neo-Platonists from the third century onward rejected Gnosticism.

In the Dungeons & Dragons fantasy role-playing game, celestials are a class of creatures and monsters known as outsiders who are of wholly good alignment.

Gnosticism used a number of religious texts that are preserved, in part or whole, in ancient manuscripts, or lost but mentioned critically in Patristic writings.

The Hypostasis of the Archons or The Reality of the Rulers is an exegesis on the Book of Genesis 1–6 and expresses Gnostic mythology of the divine creators of the cosmos and humanity.

Neoplatonism and Christianity

Neoplatonism was a major influence on Christian theology throughout Late Antiquity and the Middle Ages in the West. This was due to St. Augustine of Hippo, who was influenced by the early Neoplatonists Plotinus and Porphyry, as well as the works of the Christian writer Pseudo-Dionysius the Areopagite, who was influenced by later Neoplatonists, such as Proclus and Damascius.

Neoplatonism

Neoplatonism is a term used to designate a strand of Platonic philosophy that emerged in the third century AD against the background of Hellenistic philosophy and religion. The term does not encapsulate a set of ideas as much as it encapsulates a chain of thinkers which began with Ammonius Saccas and his student Plotinus and which stretches to the sixth century AD. Even though Neoplatonism primarily circumscribes the thinkers who are now labeled Neoplatonists and not their ideas, there are some ideas that are common to Neoplatonic systems, for example, the monistic idea that all of reality can be derived from a single principle, "the One".

Chaldean Oracles

The Chaldean Oracles are a set of spiritual and philosophical texts widely used by Neoplatonist philosophers from the 3rd to the 6th century C.E. While the original texts have been lost, they have survived in the form of fragments consisting mainly of quotes and commentary by Neoplatonist writers. They were likely to have originally formed a single mystery-poem, which may have been in part compiled, in part received via trance, by Julian the Chaldean, or more likely, his son, Julian the Theurgist in the 2nd century C.E. Later Neoplatonists, such as Iamblichus and Proclus, rated them highly. The 4th-century Emperor Julian suggests in his Hymn to the Magna Mater that he was an initiate of the God of the Seven Rays, and was an adept of its teachings. When Christian Church Fathers or other Late Antiquity writers credit "the Chaldeans", they are probably referring to this tradition.

Barachiel the Messenger is the ruler of Lunia, the bottommost layer of the Seven Heavens, one of seven such rulers known as the tome archons or Hebdomad, in the Dungeons & Dragons roleplaying game. He is the herald and messenger of the other archon paragons, and leader of the trumpet archons. As the ruler of the layer that borders the neighboring planes of Bytopia, Arcadia, the Outlands and the Astral Plane, it is also Barachiel's duty to guard Celestia against incursions from without, although the ocean of holy water that makes up most of the layer forms a strong defense in itself. His symbol is the lion, and his followers carry this symbol as a sign of obedience and fealty.

Sophia is a major theme, along with Knowledge, among many of the early Christian knowledge-theologies grouped by the heresiologist Irenaeus as gnostikos, "learned". Gnosticism is a 17th-century term expanding the definition of Irenaeus' groups to include other syncretic and mystery religions.

An archon, in the Gnosticism of late antiquity, was any of several servants of the Demiurge, the "creator god" that stood between the human race and a transcendent God that could only be reached through gnosis. In this context they have the role of the daimons in Neo-Platonism. They give their name to the sect called Archontics. They were thus called from the Greek word ἄρχοντες, "principalities", or "rulers", by reason that they held the world to have been created and ruled by malevolent Archons. The term was taken from the ancient Greek position of office "archon".

Eleleth is an angel in Gnostic cosmology and one of the four Sethian luminaries. Eleleth appears in Hypostasis of the Archons and The Three Forms of the First Thought found in the Nag Hammadi library in 1945 and is probably mentioned in the Gospel of Judas as El.

Justin or Justinus was an early Gnostic Christian from the 2nd century AD recorded by Hippolytus. He is often confused in sources with Justin Martyr as "Justin the Gnostic".