In Steiner's reading of Revelation, the bottomless pit below the spiritualizing earth into which souls that reject the Christ-impulse sink, and from which the beast climbs.
The Abyss in Anthroposophy is the bottomless pit of Revelation, the sub-physical region below the spiritualizing earth into which the portion of humanity that has refused the Christ-impulse and hardened wholly into matter sinks at the end of earthly evolution. Rudolf Steiner expounds it in The Apocalypse of John (GA 104, Nuremberg 1908) as the counter-image to the New Jerusalem: where the redeemed rise to unite with the sun, the unredeemed fall away into the depths. From this pit the beast with seven heads and ten horns ascends, the abyss being the gathering-place of the powers set against the sun. Steiner later names this downward way the descent into sub-nature, the sub-earthly world of forces lying beneath the mineral. Its sober use today is as a moral map of the deepening pull toward pure materiality.
In Steiner's Own Words
But the opposite picture had also to be put before you, the picture of the abyss in which is found a humanity which was not in a position to receive the Christ-spirit, which remained in matter, which excluded itself, so to speak, from the spiritualizing process leading into the future; and this portion of humanity which has fallen away from the spiritualized earth, and, in a certain sense apart from it, advances towards a frightful fate. When the beast with the seven heads and ten horns glowers at us from the abyss, the beast led astray by the other frightful being, the two-horned beast, this picture gives rise to fear and horror,
What it Means Today
Read narrowly, the bottomless pit is a horror borrowed from late-antique apocalyptic. Steiner asks his Nuremberg listeners to read it instead as a direction of travel. The abyss is not a furnace waiting somewhere below the floor of the world; it is what opens beneath a soul that keeps choosing weight over light, until the choosing can no longer be undone. In his later lectures and in the closing lines of Anthroposophical Leading Thoughts (GA 26, 1925), he gave this downward direction a sharper name: sub-nature, the sub-earthly realm of electricity, magnetism, and the splitting forces of the atom, which lie below the mineral kingdom as surely as the moral world lies above it. Modern civilisation, he argued, descends daily into these forces and must learn to stand upright within them rather than be dragged under.
The Goetheanum's Natural Science Section in Dornach has carried this reading forward as a practical question rather than a fright. Researchers in the tradition of Georg Unger, who led that Section from 1956, treated sub-nature not as a place to be feared but as a region of technical power that asks the human being for an answering inner strength. On this view the abyss of Revelation and the sub-natural realm of the machine age describe one and the same gradient, the long pull toward matter, and the same task answers both: to keep the spirit awake while working knowingly with forces that, left to themselves, only deepen the descent.
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