Quick Answer
An Outline of Occult Science is Rudolf Steiner's magnum opus: the most comprehensive single-volume account of cosmic and human evolution in the Anthroposophical tradition. Published in 1910, it traces the development of the cosmos through four planetary stages and describes how the human being acquired its fourfold constitution across immense spans of time.
Key Takeaways
- Steiner's most complete work: Where Theosophy introduces the human constitution and How to Know Higher Worlds gives the exercises, Occult Science presents the full cosmological picture in which both are embedded.
- Four planetary stages: Old Saturn, Old Sun, Old Moon, and Earth represent successive stages of cosmic evolution, each contributing a different member of the human constitution.
- Hierarchical beings as creators: The physical world is the product of spiritual hierarchies working across cosmic time. Steiner names and describes nine ranks of beings and their specific roles.
- The most demanding Steiner book: This is not a starting point. It requires prior reading of Theosophy and How to Know Higher Worlds to follow the argument.
- Irreplaceable for serious students: No other single volume in the Western esoteric tradition covers this much ground with this degree of internal consistency.
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Why This Book Exists
By 1910, Rudolf Steiner had published Theosophy and How to Know Higher Worlds, establishing the foundational vocabulary and the practical training path for Anthroposophy. What was missing was the larger picture: the story of the cosmos itself, told not from the perspective of physical science but from the perspective of spiritual research.
An Outline of Occult Science (German: Die Geheimwissenschaft im Umriss, GA 13) was Steiner's attempt to fill that gap. It is the most ambitious and the most demanding of his written works, and it remains the single most comprehensive account of the Anthroposophical worldview available in one volume.
The title causes difficulty for modern readers. "Occult" here does not carry the sensationalist or dark connotations it has acquired in popular culture. Steiner used it in its etymological sense: from the Latin occultus, meaning hidden or concealed. Occult science, for Steiner, is simply the science of what is hidden from ordinary sense perception but accessible to trained spiritual cognition.
Where This Book Fits in the Steiner Sequence
Steiner's three foundational books form a deliberate sequence. Theosophy establishes the vocabulary: what the human being is, what the spiritual worlds are, and how karma and reincarnation work. How to Know Higher Worlds provides the practical training: the exercises, the stages, and the dangers of the path. Occult Science then places both of these within the largest possible context: the evolution of the entire cosmos and the human being's role within it. Attempting this book without the first two is possible but not recommended. The concepts build cumulatively.
Book at a Glance
Book at a Glance
- Title: An Outline of Occult Science
- Author: Rudolf Steiner
- First Published: 1910
- Pages: 388
- Publisher: Anthroposophic Press
- Translator: Catherine Creeger (recommended modern edition)
- Genre: Anthroposophy / Esoteric Cosmology
- Best for: Students who have completed Theosophy and How to Know Higher Worlds and want the full picture
- Get it: Amazon
Get Occult Science by Rudolf Steiner on Amazon
The Four Planetary Stages
The central and most distinctive contribution of Occult Science is Steiner's account of cosmic evolution through four planetary stages. These are not the physical planets of astronomy. They are successive conditions of the entire solar system, each with its own quality of substance, consciousness, and spiritual activity.
Old Saturn
The first planetary stage. In Steiner's account, Old Saturn was a condition of pure warmth, without light, sound, or any substance denser than heat. There was no physical matter as we know it. The beings active at this stage were the highest spiritual hierarchies: the Thrones, who sacrificed their own will-substance to create the first germ of the human physical body. The human being existed here only as a warmth-body, without life, sensation, or self-awareness.
Old Sun
The second planetary stage introduced the etheric (life) body. The cosmos densified from warmth to a gaseous condition. Light appeared for the first time. The spiritual beings active at this stage were the Kyriotetes (Spirits of Wisdom), who bestowed the etheric body. The human being now had both a physical and an etheric body, comparable in consciousness to what plants have today: alive, but without sensation.
Old Moon
The third stage introduced the astral body and, with it, the capacity for sensation, desire, and emotion. The cosmos densified further to a watery condition. The beings active here were the Dynamis (Spirits of Movement). A critical development occurred at this stage: a portion of the cosmos separated off, creating a duality between a sun-like body and a moon-like body. This separation made possible the first experience of inner and outer, the seed of what would become individual consciousness.
Earth
The present stage. Here the ego, the "I," entered the human constitution for the first time. Solid matter appeared. The human being became a self-conscious, fourfold being: physical body, etheric body, astral body, and ego. The Earth stage includes the incarnation of Christ, which Steiner regards as the central event of all cosmic evolution, the moment when a divine being fully entered earthly conditions.
Planetary Stages and Modern Cosmology
Steiner's planetary stages do not map onto the physical evolution of the solar system as described by modern astrophysics. He was explicit about this: the stages he describes are conditions of consciousness and spiritual activity, not physical states. That said, certain structural parallels are worth noting. The progression from a diffuse, undifferentiated condition (Old Saturn) through increasing density and differentiation to the present solid Earth echoes the broad arc of physical cosmology's account of cooling and condensation from an initial high-energy state. Whether these parallels are coincidental or reflect deeper structural correspondences is a question Steiner would have said spiritual science can answer but physical science, by its own methods, cannot.
How the Human Being Was Built
One of the most valuable features of Occult Science is its account of how the human fourfold constitution came into being across these stages. This is not a single creation event. It is a developmental process spanning cosmic time.
At each planetary stage, a new member of the human constitution was added by specific hierarchical beings. The physical body was contributed during Old Saturn, the etheric body during Old Sun, the astral body during Old Moon, and the ego during Earth. Each member went through multiple refinements across subsequent stages, so that the physical body we have now bears the imprint of four stages of development, not just one.
What This Means for Self-Knowledge
Steiner's developmental account of the human constitution reframes the question of self-knowledge. If our physical body carries the imprint of Old Saturn, our life forces the imprint of Old Sun, our emotional nature the imprint of Old Moon, and our self-awareness the imprint of Earth, then self-knowledge is not merely personal psychology. It is cosmological archaeology. To understand why you feel what you feel, desire what you desire, and think what you think requires understanding forces that predate not just your birth but the formation of the physical earth itself. This is one reason Steiner insisted that genuine self-knowledge and genuine cosmic knowledge are ultimately the same thing.
The Spiritual Hierarchies
Steiner describes nine ranks of spiritual beings organized in three triads, following a tradition that reaches back through Dionysius the Areopagite to early Christian esotericism:
Third Hierarchy (closest to humanity): Angels (Angeloi), Archangels (Archangeloi), Archai (Spirits of Personality/Time Spirits)
Second Hierarchy: Exusiai (Spirits of Form), Dynamis (Spirits of Movement), Kyriotetes (Spirits of Wisdom)
First Hierarchy (closest to the divine): Thrones (Spirits of Will), Cherubim, Seraphim
In Occult Science, these beings are not abstract theological categories. They are active participants in cosmic evolution, each contributing specific capacities and substances to the developing cosmos and human being. The Thrones sacrificed will-substance to form the physical body on Old Saturn. The Kyriotetes bestowed the etheric body on Old Sun. The account is precise, detailed, and internally consistent across hundreds of pages.
Practice: Reading the Cosmic Evolution Chapters
The chapters on planetary evolution are the most demanding in the book. In our experience, they become readable only when approached meditatively rather than analytically. Read one stage per sitting. After reading, close the book and try to hold the picture in your mind as a whole: the quality of substance, the beings at work, the state of human consciousness. Do not try to memorize details. Try instead to enter the gesture of each stage. Old Saturn is sacrificial warmth. Old Sun is living light. Old Moon is sentient water. Earth is self-aware solidity. If you can feel the quality of each stage, the details will arrange themselves around that feeling over time.
Sleep, Death, and What Lies Between
Alongside the cosmic evolution chapters, Occult Science includes Steiner's most complete written account of what happens during sleep and after death. This material expands on what he introduced in Theosophy but with substantially more detail.
During sleep, Steiner explains, the astral body and ego withdraw from the physical and etheric bodies. They enter the soul world, where the experiences of the day are processed and integrated. The physical and etheric bodies undergo restoration. The quality of sleep, in this account, depends on the moral and cognitive quality of waking life: a day lived with attention and purpose produces more restorative sleep than one lived reactively.
After death, the process is more extended. The etheric body dissolves within a few days, producing the panoramic life review reported by many near-death experiencers. The soul then works through the soul world over a period proportional to the length of the earthly life, re-experiencing everything from the perspective of those it affected. The spirit then enters the spirit land, where it works with cosmic beings to prepare the conditions for its next incarnation.
Who Should Read This?
This is the third book to read in the Steiner sequence, after Theosophy and How to Know Higher Worlds. Attempting it first will produce confusion, not illumination.
For readers who have completed the first two books and are asking "but what is the larger picture?", this is the answer. No other single volume in the Western esoteric tradition covers as much ground with as much precision. Manly P. Hall's Secret Teachings of All Ages is broader in scope, covering dozens of traditions and symbol systems. But Steiner's Occult Science is deeper in a single direction: one complete, internally consistent account of where the cosmos came from, how the human being was formed, and where both are heading.
It is also essential reading for anyone who encounters Steiner's lecture cycles and wants to understand the framework they assume. Steiner gave over 6,000 lectures, and nearly all of them presuppose the cosmological picture laid out in this book.
Thalira Verdict
An Outline of Occult Science is Steiner's magnum opus and among the most ambitious spiritual texts in the Western tradition. It is best suited to students who have already worked through Theosophy and How to Know Higher Worlds. Its challenge is the sheer density of the cosmic evolution chapters, which require meditative reading rather than analytical speed. Rating: 5/5 for students ready for the full Anthroposophical cosmology; not recommended as a first Steiner book.
Where to Get Your Copy
The Catherine Creeger translation published by Anthroposophic Press (ISBN 978-0-88010-463-0, 388 pages) is the clearest modern English edition. Earlier translations exist under slightly different titles but the Creeger version is recommended for contemporary readers.
You can get An Outline of Occult Science in paperback and Kindle on Amazon.
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Frequently Asked Questions
What is Occult Science by Rudolf Steiner about?
An Outline of Occult Science is Rudolf Steiner's most comprehensive single work. It describes the evolution of the cosmos and the human being across four planetary stages: Old Saturn, Old Sun, Old Moon, and Earth. It also covers the nature of the human constitution, the states of sleep and death, and the path of initiation. Published in 1910, it is considered Steiner's magnum opus in book form.
Is Occult Science hard to read?
Yes. This is the most demanding of Steiner's major written works. The chapters on cosmic evolution require sustained concentration and a willingness to hold unfamiliar cosmological pictures in mind over dozens of pages. Readers who have first worked through Steiner's Theosophy and How to Know Higher Worlds will find it substantially more accessible, as those books establish the vocabulary and framework this book builds upon.
What are the planetary stages in Steiner's Occult Science?
Steiner describes four main stages of cosmic evolution. Old Saturn, where the physical body was first formed in a condition of pure warmth. Old Sun, where the etheric body was added and the cosmos took on a gaseous quality. Old Moon, where the astral body was added. And Earth, where the ego or "I" entered the human constitution. Each stage involved different hierarchical beings and different states of consciousness.
How does Occult Science compare to The Secret Teachings of All Ages?
Manly P. Hall's Secret Teachings of All Ages surveys the entire Western esoteric tradition encyclopedically: symbols, schools, and teachings across cultures. Steiner's Occult Science presents one internally consistent cosmological system in exhaustive detail. Hall gives you the breadth of the tradition. Steiner gives you the depth of a single, rigorous account. They are complementary rather than competing works.
Should I read Occult Science before or after How to Know Higher Worlds?
After. The recommended Steiner reading sequence is Theosophy first (for vocabulary), then How to Know Higher Worlds (for practical exercises), then Occult Science (for the full cosmological picture). Occult Science assumes familiarity with the concepts introduced in the first two books and builds substantially upon them.
Where can I buy Occult Science by Rudolf Steiner?
The Catherine Creeger translation published by Anthroposophic Press is the recommended modern edition. You can get your copy on Amazon here. Paperback and Kindle formats are available.
Sources and Further Reading
- Steiner, Rudolf. An Outline of Occult Science. Trans. Catherine Creeger. Anthroposophic Press, 1997. ISBN 978-0-88010-463-0.
- Rudolf Steiner Archive, GA 13: rsarchive.org/Books/GA013/
- Steiner, Rudolf. Theosophy. Anthroposophic Press, 1994.
- Steiner, Rudolf. How to Know Higher Worlds. Anthroposophic Press, 1994.