The volume catalogued as GA 87, Ancient Mysteries and Christianity (in German, Alte Mysterien und Christentum), gathers twenty-four lectures Rudolf Steiner gave in Berlin between 19 October 1901 and 26 April 1902. The series belongs to the very first phase of Steiner's public esoteric teaching, the winter cycles he delivered to the Theosophical circle in Berlin while still serving as editor and lecturer in the wider German cultural scene. Its subject is the long road by which the wisdom of the ancient Mysteries, the Greek initiation cults above all, passed through Greek philosophy and Hellenistic Judaism and finally flowed into early Christianity. Steiner treats the Mysteries not as quaint ritual but as a disciplined path of inner transformation, and he reads the figures who carried that path forward, from Heraclitus to Scotus Eriugena, as links in a single chain of spiritual development.
Place in Steiner's Work
This cycle is the direct sequel to the lectures published as Mysticism at the Dawn of the Modern Age, which traced German mysticism from Meister Eckhart to Angelus Silesius. Having followed that later stream, Steiner here turns back to its source: the centuries before the medieval mystics, where, as he puts it, lie the seeds of everything that later mysticism would unfold. The series therefore sits at a hinge in his biography. It precedes the great cosmological lecture cycles by several years and shows him working primarily as a reader of intellectual history, drawing the line from the Eleusinian and Orphic cults through Pythagoras and Plato to Philo of Alexandria and the Gospels.
What makes GA 87 distinctive among his early work is its method. Steiner reads ancient philosophers as initiates first and thinkers second. Heraclitus, usually filed away as a Presocratic, is presented as a leading figure of the Eleusinian cult whose doctrine of eternal flux only makes sense against a background of Mystery wisdom. The same approach reappears in Steiner's mature output, but here we watch it being formed. For the modern student, the cycle is a window onto how his historical imagination took shape before it acquired its later cosmological scope.
It also helps to know the audience. These were not yet the lectures of a movement with its own institutions; they were winter evening talks before a small Berlin circle, and the tone is that of a teacher tracing a problem aloud rather than handing down a system. Steiner repeatedly tells his listeners that the Mysteries were a matter of living truth rather than received doctrine, that the initiate had to undergo an experience before any teaching could mean anything. That conviction governs the whole cycle. He is not cataloguing beliefs but describing a path, and he asks the listener to follow the inner logic of that path through one historical figure after another.
Themes and Structure
The twenty-four lectures move forward in rough chronological order. The opening group treats the Greek Mysteries through their early witnesses. Heraclitus opens the sequence: Steiner reads his fire and his river not as physical claims but as symbols of a nature reborn in spirit, and he draws out the idea that strife and harmony, life and death, are two faces of one reality. The "Dark One" of Ephesus becomes, on this reading, the first thinker to grasp that self-knowledge is the highest knowledge of the world.
A long central stretch is given to Pythagoras and Plato. Steiner devotes several lectures to the Pythagorean doctrine, the relation of soul and spirit to the bodily world, and the question of number as more than calculation. He reaches Plato through the Phaedo and the Timaeus, reading the dialogues on the soul's immortality as a continuous initiation set into argument. A separate lecture on the Egyptian Book of the Dead and another on the myth of Heracles widen the frame: the twelve labors, he argues, are not feats of strength but a symbolic map of the trials a soul undergoes on its way to a higher consciousness.
The cycle then turns to the threshold of Christianity. Philo of Alexandria is the turning point of the whole series. Steiner shows how Philo took the decisive step beyond Plato, locating the divine not in the eternal world of ideas alone but in the free creative will at the heart of the person. Plato had found the real in his ideas; Philo, digging deeper, sought the divine in life itself, in the act by which a free being carries an idea out of the eternal and into time. Steiner treats this as one of the great philosophical conclusions of antiquity, and he uses it to explain how a Greek and Jewish inheritance could fuse into the spiritual climate from which the Gospels arose. From Philo the lectures pass to the Therapeutae and the Essenes, the Gospels, the relation of the Christ idea to Egyptian and Buddhist spiritual life, the Gospel of Matthew, the initiation process as such, the Apocalypse and Gnosis, the contrast of Pauline and Johannine Christianity, and at last Augustine and Scotus Eriugena. The arc is deliberate: the wisdom hidden in the old cults does not vanish with Christianity but is taken up and recast in it.
One thread runs through the entire sequence and is worth holding onto as you read. For Steiner the Mysteries center on a single experience, the death and rebirth of the soul, dramatized outwardly in the cults and grasped inwardly by the initiate. Heraclitus sees death and life as one; the myth of Heracles stages it as twelve labors; Plato sets it into argument about immortality; Philo deepens it into a doctrine of the will; and the Gospels, in Steiner's reading, present it once as a historical fact. Seen this way, the twenty-four lectures are not a survey of separate teachings but variations on one motif unfolding across history.
A reader should treat the series as a guided itinerary rather than a set of fixed conclusions. Steiner is sketching connections across a thousand years of spiritual history, and the value lies in the connecting line itself, the claim that Mystery, philosophy, and Gospel are one developing thing seen at different stages.
Glossary Terms from this Volume
Several entries in the Thalira glossary draw directly on GA 87. This page serves as the hub for those terms; each links to its full entry:
Each of these figures or motifs is treated at length in one or more lectures of the cycle, and the glossary entries set them in the wider context of Steiner's thought.
Where to Read It
The lectures of GA 87 were translated into English under the title Ancient Mysteries and Christianity. You can read the full text online at the Rudolf Steiner Archive, which hosts public translations of the cycle alongside the German originals. For print editions and any current English volume, search the publisher catalogue at SteinerBooks. As always, the primary text rewards slow reading; this guide is meant to orient you before you enter the lectures themselves.
Continue Your Study
To follow the threads of this volume further:
- Browse the full Thalira glossary to see how the Mystery cults, Pythagoras, Plato, and early Christianity connect across Steiner's work.
- Begin with the four entries above, especially Heraclitus, which opens the cycle and sets its key theme of self-knowledge.
- Return to the wider GA Work Library to place GA 87 among Steiner's other volumes and trace the path from ancient Mystery wisdom into his later teaching.