Steiner Online Library Spiritual Science for Human Evolution

The Working of Natural Substance and Spiritual Essence in the Visible World
GA 98

Part I

  1. The So-called Dangers of Occult Development
    Vienna, 5 November 1907
  2. Esoteric Development and Super-sensible Knowledge
    Vienna, 7 November 1907
  3. The Rosicrucian Initiation
    Düsseldorf, 15 Dec 1907
  4. The Mysteries, a Christmas and Easter Poem by Goethe
    Cologne, 25 Dec 1907
  5. The Festival of the United Soul Endeavor
    Cologne, 7 Jun 1908
  6. Whitsuntide of the Spiritual Striving Together and Working on the Spiritualisation of the World
    Cologne, 9 Jun 1908

Part II

  1. Man and the Surrounding World
    Nuremberg, 1 December 1907
  2. The Elemental Kingdoms of Nature
    Munich, 4 December 1907
  3. The Relation of the Human Being to Nature
    Stuttgart, 7 Dec 1907
  4. Supersensible Beings and their Influence on Humans
    Munich, 15 Jan 1908
  5. Group Souls of Animals, Plants, and Minerals
    Frankfort, 2 Feb 1908 a.m.
  6. Group Souls of Animals, Plants, and Minerals
    Heidelberg, 2 Feb 1908 p.m.
  7. The Influence of Other Worlds on the Earth I
    Stuttgart, 8 Feb 1908
  8. The Influence of Other Worlds on the Earth II
    Stuttgart, 11 Feb 1908
  9. The Development of the Earth and Humanity
    Munich, 17 March 1908
  10. The Relationship between Worlds and Beings
    Munich, 29 April 1908
  11. Elementary Beings and other Higher Spiritual Beings—Spiritual Beings of the Nature Kingdoms
    Munich, 14 June 1908


  1. Beings Who Influence Humans, Beings of the Moon, Mars, Venus, Saturn
    Hannover, 24 February 1908

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"You can see from this, my dear friends, what mischief will be set on foot if the truths of Spiritual Science are withheld. For man will be exposed to the forces of evil, and he will only be protected from it by giving himself up to the spiritual life of the good. To withhold the spiritual life of goodness from men is to be no friend to humanity. Whoever does this, be he Freemason or Jesuit, is no friend to humanity. For it means handing men over to the forces of evil. And there may be a purpose in doing so. This purpose may be to confine goodness to a small circle, in order by the help of this goodness to dominate the helpless humanity who are thus led by evil into the follies of life."

—Rudolf Steiner,
Spiritual Science Notes On Goethe's Faust, Vol. II, No. 273-8.

Spiritual Exercises

Calendar of the Soul

In 1912 Rudolf Steiner offered a “calendar of the soul” with weekly verses that express how the changing seasons in both the outer natural world and our inner lives help humanity evolve. Download and read the verses in four translations with commentary by Eloise Krivosheia of the Los Angeles Branch of the Anthroposophical Society.


2022-2023 Calendar Dates