"Light is destroying itself within our post-Atlantean earthly processes. Until the time of Atlantis the earthly process was a progressive process, but since then it has been a process of decay. What is light? Light decays, and the decaying light is electricity. What we know as electricity is light that is destroying itself within matter. The chemical force that undergoes a transformation within earthly evolution is magnetism. Yet a third force will become active, and if electricity seems to work wonders today, this third force will affect civilization in a still more miraculous way. The more of this force we employ, the faster the earth will tend to become a corpse and its spiritual part prepare for the Jupiter embodiment. Forces have to be applied to destroy the earth in order that man can become free of the earth and that the earth's body can fall away. As long as the earth was involved in a progressive process, this was not done, since only the decaying earth can use the great achievements of electricity. Strange as this sounds, it must gradually become known. We must understand the process of evolution to evaluate our culture in the right way. We shall learn thereby that it is necessary for the earth to be destroyed; otherwise, the spirit will not become free. We shall also learn to value what is positive, namely, the penetration of spiritual forces into our existence on earth."
Rudolf Steiner, The Reappearance of Christ in the Etheric, Lecture 9. The Etherization of the Blood, GA 130, 1 October, 1911, Basel.