The Mystery of Death (GA 159) gathers twenty lectures Rudolf Steiner gave between 31 January and 19 June 1915, during the first year of the First World War. He spoke them in cities scattered across the German-speaking lands and Central Europe: Zurich, Bremen, Leipzig, Nuremberg, Vienna, Prague, Linz, Elberfeld, Düsseldorf, and Cologne. The volume is not a single course built lecture upon lecture, but a thematic gathering. What binds the talks together is the question the title names. Steiner returns again and again to what happens when a human being crosses the threshold of death, and what the living owe to the dead. Because so many young people were dying in the war, often decades before their natural span, the subject was not abstract for the audiences who first heard these words. Steiner opens the series at a cremation, naming members of his own circle who had just died, and that note of immediate grief runs underneath the whole volume.
Place in Steiner's Work
GA 159 belongs to the wartime lecture cycles of 1915, a period when Steiner pressed his spiritual science to speak directly to the catastrophe unfolding around his listeners. By this point the basic architecture of anthroposophy was settled: the fourfold human being of physical body, etheric body, astral body, and ego; the long passage between death and a new birth; the place of the Christ event at the turning point of earthly time. These lectures do not lay that groundwork again. They apply it. Steiner takes the framework his audiences already knew and asks what it means when ordinary life is interrupted by mass, premature death.
The volume also sits close to the cycles on the life between death and rebirth that Steiner gave in the years on either side of it. Where those courses map the soul's journey in the spiritual world, GA 159 turns the same map toward the living. Its recurring claim is that the dead are not gone and not idle. They continue to act, and the connection between the living and the dead can be cultivated rather than left to fade. In Steiner's later work this becomes a settled theme, the practice of reading to the dead and holding them in conscious memory. Here, under the pressure of the war, that idea arrives with unusual urgency.
It helps to know that these were not academic talks. Many were given to small working groups of the Anthroposophical Society in the cities Steiner passed through that spring. The audiences were members who already shared a vocabulary and a sense of community. That setting shapes the tone. Steiner speaks to people grieving specific losses, and he frames the spiritual teaching as something to be lived rather than merely studied. Several of the lectures were taken down by stenographers and survive only in those notes, which is why the volume reads less like a finished book than like a record of a teacher thinking aloud with a circle he trusts.
Themes and Structure
The opening lecture sets out one of the volume's most distinctive teachings. Steiner takes the four virtues named in Plato, wisdom, courage, temperance, and justice, and binds each to a member of the human being and to the soul's life across incarnations. Wisdom and justice, he suggests, reach back toward what the soul brought from earlier lives, while courage and temperance work forward, shaping the bodily organs of a future incarnation. Moral life, in this reading, is not only a matter of conduct here and now. It is a forming activity that reaches into the body a soul will one day inhabit again.
From there the lectures move through the central image of the volume, the passage through the gate of death described as a transformation of life rather than its end. Steiner distinguishes the fate of the physical body, surrendered to the earth, from that of the etheric body, which separates more slowly. When a person dies in old age, the etheric body has little life-force left to give. When a person dies young, in the prime of life, that etheric body carries unspent forces that could have sustained a physical body for decades more. These unused forces do not vanish. Steiner teaches that they pass into the spiritual world and into the folk-soul, where they become a living power working against the materialism of the age. This is the teaching that the early dead serve the progress of the living, and it forms one of the deepest currents of the whole series.
A second band of lectures turns to history and to Central Europe's position between the cultures of East and West. Steiner reads the war as a kind of illness in the body of humanity, and he sets the spiritual striving of the central European peoples against the materialism he saw pressing in from either side. He treats the cultural impulse behind eurythmy, the relation of European peoples to their guiding spiritual beings, and the way the Christ impulse works to bridge the gap between the living and the dead. Several lectures take up the polarity of Lucifer and Ahriman and the threefold constitution of the human being held in balance between them, a motif Steiner was developing in sculpture and thought during these same months.
Running through these historical lectures is a quieter teaching about sleep and the rhythms of the day and year. Steiner describes how cosmic forces work into the human members during sleep, and he ties this to the meaning of Christmas and to what he calls the significance of sacrificial death. The dead, in this account, are not merely remembered. They become active helpers in human progress, their warning voices reaching the living who learn to listen. The folk-soul appears here not as a metaphor but as a working being, strengthened by the unspent forces of those who died young. These threads keep returning the listener to the volume's governing concern, that the boundary between the seen and unseen worlds is more porous than ordinary consciousness assumes.
The series closes with a small group of Düsseldorf and Cologne lectures that look beyond the war toward the future. The most often cited of these, given at the founding of a working group, asks what it means to prepare for the coming cultural age that Steiner calls the sixth epoch. The keynote there is community built on conscious spiritual life, on a brotherliness freely chosen rather than imposed by blood or circumstance. The final lecture, on overcoming death through knowledge, returns the whole volume to its starting question and answers it: death is overcome not by escaping it but by understanding it.
Glossary Terms from this Volume
Several entries in the Thalira glossary draw directly on the teachings of GA 159. Each links to its full treatment, where the idea is set in the wider context of Steiner's thought.
Where to Read It
You can read the full text of these lectures at the Rudolf Steiner Archive, which hosts the English translations alongside the original German. For print editions and related titles, search the publisher catalogue at SteinerBooks. As always with translated lecture material, remember that these were spoken words, taken down by stenographers and rendered into English by various hands, so phrasing can differ between editions.
Continue Your Study
If the questions in GA 159 draw you further, several paths open from here:
- Browse the full Thalira Glossary to follow any of these terms into the wider web of Steiner's vocabulary.
- Explore the GA Work Library to find the neighbouring lecture cycles on death, rebirth, and the soul's journey after the threshold.
- Read more closely on the soul's passage through the gate of death and the long life between death and a new birth, themes this volume shares with Steiner's broader teaching on karma and reincarnation.