Dr. Rudolf Steiner,
Dornach, January 28, 1923
The evil astral world is the province of Lucifer, the evil Lower Devachan the province of Ahriman, and the evil Higher Devachan the province of the Asuras.
When chemical action is driven down beneath the physical plane — into the evil Devachanic world — magnetism arises.
When light is thrust down into the sub-material — that is to say, a stage deeper than the material world — electricity arises.
If what lives in the Harmony of the Spheres is thrust down farther still, into the province of the Asuras, an even more terrible force — which it will not be possible to keep hidden very much longer — is generated. It can only be hoped that when this force comes to be known — a force we must conceive as being far, far stronger than the most violent electrical discharge — it can only be hoped that before some discoverer gives this force into the hands of humankind, men will no longer have anything unmoral left in them.
Answer: As the residue of the Moon-evolution we have our present moon which circles around the Earth. Similarly there will be a residue of the Earth which will circle around Jupiter. Then these residues will gradually dissolve into the universal ether. On Venus there will no longer be any residue. Venus will manifest, to begin with, as pure Warmth, then it will become Light, and then pass over into the spiritual world. The residue left behind by the Earth will be like a corpse. This is a path along which man must not accompany the Earth, for he would thereby be exposed to dreadful torments. But there are Beings who accompany this corpse, since they themselves will by that means develop to a higher stage.
Astral World the province of Lucifer
Lower Devachan the province of Ahriman
Higher Devachan the province of the Asuras