Hermeticism

Greco-Egyptian source (c. 100–300 CE). The foundational texts are the Corpus Hermeticum — seventeen Greek treatises written in Hellenistic Egypt in the first centuries CE, the most famous being the Poimandres, a visionary account of the mind of God revealing the origin of the cosmos.

(The Swiss scholar Isaac Casaubon showed on philological grounds in 1614 that these are Hellenistic, not the primordial Egyptian wisdom they were long believed to be.) Alongside the Corpus sits the Emerald Tablet (Tabula Smaragdina) — a short, cryptic alchemical text surviving first in early-medieval Arabic sources, the origin of the famous line “That which is above is as that which is below.”

• Renaissance revival (15th–17th c.). When Marsilio Ficino translated the Corpus Hermeticum for Cosimo de’ Medici in 1463, it ignited the Renaissance Hermetic revival; figures such as Pico della Mirandola, Giordano Bruno, and Cornelius Agrippa wove Hermetic mentalism and microcosm-macrocosm doctrine into Western magic and natural philosophy.
• Modern occult revival (19th–20th c.). Hermeticism re-emerged as the philosophical backbone of the Hermetic Order of the Golden Dawn and the wider ceremonial-magick revival, and — crucially for this Atlas — fed directly into the New Thought movement.

A note on the evidence (important). The widely-quoted “Seven Hermetic Principles” (Mentalism, Correspondence, Vibration, Polarity, Rhythm, Cause and Effect, Gender) come from The Kybalion (1908), published pseudonymously by “Three Initiates” — generally identified as the New Thought writer William Walker Atkinson. They are a modern synthesis: genuinely Hermetic in spirit on mentalism and correspondence, but the sevenfold scheme and much of the vibration/polarity framing reflect early-20th-century New Thought, not the ancient Corpus Hermeticum. The word “Kybalion” itself has no known ancient Greek meaning. This Atlas honors the Kybalion as a living modern expression of the stream while keeping the dating straight: the Corpus is ancient; the seven principles are 1908.

Mentalism — “The All is Mind.” The universe is a mental creation of the One; consciousness is primary and substance is its expression. (→ All Is One / Consciousness Is Fundamental.)

• Correspondence — “As above, so below; as within, so without.” The same patterns repeat at every scale, so the structure of the cosmos can be read in the human soul and vice versa. (→ The Inner Creates the Outer, The Inner Creates the Outer.)
• The microcosm and the macrocosm. The human being mirrors the whole; “know thyself” is therefore a cosmology, and inner work has real reach. (→ The Inner Creates the Outer.)
• Vibration and polarity. Everything is in motion; opposites are the same thing in degree (hot/cold, love/hate), so states can be transmuted by raising or shifting their “vibration.” (→ Life Is a Dream / The Inner Creates the Outer — the most scientifically over-borrowed of the principles; handled carefully in this Atlas.)
• The regenerative ascent. Through gnosis (direct knowing) the soul can ascend back through the cosmic spheres to its divine source — the nous. (→ All Is One.)
• Theurgy / the magus. Because the law is one, the knower can consciously cooperate with it — the philosophical license for magic, prayer, and “mental science.” (→ Life Is a Dream.)

Hermes Trismegistus — the legendary attributed author; the personification of the tradition.

• The Corpus Hermeticum (c. 100–300 CE) and the Emerald Tablet (early-medieval) — the primary texts.
• “Three Initiates” / W. W. Atkinson — The Kybalion (1908) — the modern restatement that carried Hermetic vocabulary into New Thought.
• Manly P. Hall — The Secret Teachings of All Ages (1928) — the great 20th-century synthesizer who popularized Hermetic-esoteric doctrine.
• Renaissance carriers (in prose; no nodes yet): Ficino, Pico della Mirandola, Bruno, Agrippa.

Hermeticism is one of the clearest ancient statements of several Atlas truths: All Is One consciousness is primary (“The All is Mind”), The Inner Creates the Outer the outer mirrors the inner, The Inner Creates the Outer as above so below (its signature), Life Is a Dream reality is participatory/mental, Life Is a Dream vibration as the language of states, and All Is One all is one. A reader can drop from any of those truths back into this root.

Grew from / alongside: Egyptian religion (Thoth), Greek philosophy (Platonism, Stoic logos), and shares deep ground with Neoplatonism and Gnosticism (contemporaneous Hellenistic-Egyptian currents)., Seeded: Western alchemy (the Emerald Tablet is its charter), Renaissance magic, Kabbalah-infused ceremonial systems, the Hermetic Order of the Golden Dawn and modern ceremonial magick, and — through the Kybalion and the broader “mental science” current — the New Thought movement, from which modern manifestation culture descends.,