Notes:Note 1. See: “The Path of Knowledge and its Stages. The Rosicrucian Path” “Imaginative Knowledge and Artistic Imagination”Note 2. See: The Xmas Thought and the Mystery of the Ego. The Tree of the Cross and the Golden Legend. Also: The Tree of Life and the Tree of Knowledge. The Mysteries of Art (Paths of Spiritual Knowledge and the Renewal of an World-Conception).Note 3. See: Rudolf Steiner's Five Easters by Anasthasius Grün.Note 4. See: Wie widerlegt man Geistesforschung (How does one oppose Spiritual Research) and Wie begrandet man Goistesforschung (What is the Foundation of Spiritual Research), double volume no. 1/2 of the series Ergebnisse der Geistesforschung (Results of Spiritual Research), Lectures by Rudolf Steiner, publd. by Phil. Anthropl. Verlag in Dornach, Switzerland.