These lectures were given shortly after Steiner returned from a trip to England where he visited many of the stone circles of the Druids. Because of this trip, he could give a lively description of the clairvoyant consciousness of the people who erected these ancient monuments. He describes how they discerned the changing seasons and stellar influences from the quality, of the shadows cast by the stones. From this, they directed agricultural practices and acquired a deep knowledge of the elemental beings in nature. Their perception of the spiritual being of the Sun, while shaded from its physical light, prepared them for the ready acceptance of Christianity long before missionaries from Rome reached these islands.