Supersensible Man (GA 231) is a cycle of lectures Rudolf Steiner delivered in The Hague from November 13 to 18, 1923. The volume gathers five members' lectures, given under the title "Supersensible Man, as He Can Be Perceived and Understood out of Anthroposophical Wisdom," together with two public addresses from the same week, "Anthroposophy as a Demand of the Times" and "Spiritual Knowledge: A Way of Life." Its core subject is the human being who cannot be found by physiology or chemistry: the being who passes through births and deaths, ascends after death through the spheres of Moon, Mercury, Venus, and Sun, and descends again along the same path to a new body. In the space of five evenings Steiner traces that entire journey, which makes this one of the most compact complete accounts of the life between death and rebirth anywhere in his work.
Place in Steiner's Work
The Hague course belongs to the last and most concentrated phase of Steiner's lecturing life. The first Goetheanum had burned on the night of December 31, 1922, and 1923 became the year of rebuilding: national Anthroposophical Societies were founded across Europe through the autumn, and Steiner's visit to the Netherlands in mid November coincided with the founding of the Dutch Society. Roughly five weeks after these lectures came the Christmas Conference in Dornach, at which the Society was refounded with Steiner himself at its head.
Read against that calendar, GA 231 has the character of a summation offered at a threshold. The territory it covers, the soul's experiences between death and a new birth, had occupied Steiner since the cycles of 1912 and 1913, and he had treated it earlier in 1923 in the Kristiania lectures collected as GA 226. What distinguishes the Hague presentation is its compression and its warmth: a full cosmology of the excarnate human being, ordinarily spread across dozens of lectures, is here condensed into five, spoken to a Dutch audience meeting him in this depth for the first time. The course also looks forward. Its closing pictures of destiny woven into walking, speaking, and thinking anticipate the great karma lectures of 1924, which would take up the same questions systematically.
Themes and Structure
The two public lectures frame the course. "Anthroposophy as a Demand of the Times" argues that the supposed limits of knowledge are limits of method, not of the human being, and that a genuine science of soul and spirit must be won by disciplined inner development rather than borrowed from tradition. "Spiritual Knowledge: A Way of Life" draws the practical consequence: knowledge of the spirit is not a further shelf of information but a change in the knower, engaging heart and will where ordinary science deliberately excludes them.
The five course lectures then unfold a single arc. The first begins with an honest audit of natural science, granting its solidity while showing that it describes only what arises at conception and dissolves at death. Steiner then turns the question around: the human form itself, he argues, cannot be explained from earthly forces at all, and he begins to read body and figure as the work of the planetary cosmos and the spiritual Hierarchies, an archetype inscribed from beyond the Earth.
The second and third lectures follow the soul after death. The physical form falls away, and human beings come to know one another by a spirit form shaped by their moral life; what a person was inwardly becomes visible outwardly. In the Moon sphere the soul undergoes a sequence of experiences that each carry the weight of a verdict, encountering the primeval Teachers of humanity and feeling the judgement of the cosmos upon its earthly life. Ascending further, the soul finds that earthly capacities lose their currency one by one: knowledge valid on Earth fades to memory, and earthly language sounds as a broken tone against the harmony of the spheres, so that in the Sun existence the soul must be woven anew into what Steiner calls the Cosmic Word.
The fourth lecture describes the return. In the Sun sphere, beings of the Second Hierarchy lay the spirit germ of the heart into the descending soul, a concentration of everything it has morally become. The soul sights the long line of ancestors that will culminate in its future parents, and then, in the Moon sphere, its vast cosmic consciousness is gradually dimmed down to the dream consciousness of the infant, so that incarnation becomes possible at all. Steiner closes the arc with a sentence that could stand over the whole cycle:
"Physical man, with all that we can see of him here on Earth, is, in truth, only to be understood in the light of a knowledge of super-sensible man."
The fifth lecture is the most unexpected. Rather than remaining among the spheres, it returns to the Earth itself and shows the cosmos present in nature: quartz bearing rock on high mountains becoming transparent to imaginative sight, the metals holding the Earth's memory of its own past, and the flames of molten metal streaming out into space and returning as the forces that raise the crawling child upright. Destiny, the lecture suggests, can be read in these pictures as truly as in any doctrine.
Glossary Terms from this Volume
Twelve entries in the Thalira glossary draw directly on GA 231, and together they map the course's whole arc. From the opening lecture comes The Cosmic Archetype of the Human Form, the reading of the human figure as a script written by the Hierarchies rather than a product of earthly substance.
The ascent after death supplies a cluster of entries. The Moral-Spiritual Physiognomy treats the spirit form in which the dead appear to one another, shaped by the ethical quality of the life just lived. The Three Judgements of the Moon Sphere follows the soul's first region after death, where three successive experiences each fall upon it with the force of a verdict. Will as the Organ of Perception takes up the reversal by which the will, asleep during earthly life, becomes the soul's instrument of spiritual sight. The Diminishing Validity of Earthly KnowledgeThe Discord of Earthly Speech both describe what the soul must surrender on the way up: the one, a science that holds good only on Earth; the other, a language that rings as a dissonant tone within the music of the spheres.
The return journey is charted in three entries. The Macrocosmic Heart presents the spirit germ of the heart bestowed in the Sun sphere, in which the soul's whole moral being is concentrated. The Line of Generations follows the descending soul's early connection with the stream of ancestors leading to its birth family. The Dimming of Cosmic Consciousness describes the work of the primeval Teachers in the Moon sphere, toning cosmic clarity down to the dream of the newborn.
The final lecture's nature mysteries yield the remaining three. Silicious Rock as Cosmic Eye recounts the mountain experience in which quartz rock grows transparent and becomes an eye through which the Earth gazes into the cosmos. The Earth's Memory in the Metals reads the metallic veins of the planet as a record of its own evolutionary past. Molten Metal and the Upright Child traces the circuit from smelting flame out to the boundaries of space and back again, returning as the force that lifts the child to standing.
Where to Read It
The complete English text of the course, including both public lectures and all five members' lectures, is freely available: read the full text at the Rudolf Steiner Archive. Print editions of the cycle have appeared under the title Supersensible Man; current availability can be checked through the publisher's catalogue via a SteinerBooks search. The course is short enough to read in a few sittings, but it rewards a slower pace: one lecture at a time, with the glossary entries above as companions, lets the arc from death to new birth build as Steiner intended.
Continue Your Study
Three natural next steps from this volume:
- Browse the full Thalira Glossary alphabetically to see how the concepts of GA 231 connect with terms drawn from the rest of Steiner's work.
- Return to the GA Work Library to choose a neighbouring volume, particularly the 1924 karma cycles that carry this course's destiny questions forward.
- Start from a single thread: follow The Macrocosmic Heart into the related entries it links, and let the glossary's cross references guide your path through the life between death and rebirth.