Horn Manure and Horn Silica, and the Influence of the Sun

"With the horn manure (500) and horn silica (501) preparations we have to do with the direct influence of the sun and its structuring, uprightness-forming and individualising forces. These enable both plant and soil to develop their true forms. They are connected with forces of the Self, the 'ego potentiality' that Rudolf Steiner describes in the 8th lecture."

Pierre Masson, in a presentation at the 2018 Agricultural Conference on The Preparations in Dornach, Switzerland.