Steiner examines the historical pattern of humanity's thoughts and spiritual development in its search for the meaning of existence. He discusses the Sibyls, Zarathustra, astrology in Egypt, the poets and philosophers in Greece and Rome, and the Hebrew prophets. These lectures culminate in the esoteric background to the Parsival story and the Holy Grail, and a discussion of how to behold the picture of the Holy Grail by reading the stellar script in the sky at Easter.
Translated from shorthand reports unrevised by the lecturer. The original texts of the lectures are contained in the series of 6 lectures entitled Christ and the Spiritual World. Concerning the Search for the Holy Grail, in German, Christus und die geistige Welt — Von der Suche nach dem heiligen Gral in the Complete Edition of Rudolf Steiner's works. (No. 149 in the Bibliographical Survey, 1961).