The Astral World
GA 107
Three lectures by Rudolf Steiner and given in October of 1908 at Berlin. They are the first, second, and fourth of nineteen lectures in the lecture series entitled, Spiritual-Scientific Anthropology/Knowledge of Man, published in German as, Geisteswissenschaftliche Menschenkunde. Translated by M. Gotfare
| I. | The Astral World | October 19, 1908 |
| II. | Some Characteristics of the Astral World | October 21, 1908 |
| III. | The Law of the Astral Plane: Renunciation; The Law of the Devachanic Plane: Sacrifice | October 26, 1908 |