When Rudolf Steiner gave these lectures 98 years ago, industrial agriculture was booming and organic methods were replaced in the name of science, efficiency, and technology. With the growing concern in recent years about the quality of food and the development of the organic products movement and its acceptance by the public, perceptions have changed. The qualitative dimension of food is back on the agenda and in this context, Steiner's unique cycle of lectures on agriculture is crucial for the current era. With these speeches, Steiner created and inaugurated "biodynamic" agriculture. A form of agriculture that has come to be considered the best organically produced food. However, the agriculture that Steiner speaks of here is much more than organic. It refers to cooperation with the universe, with the earth, and with spiritual beings. To facilitate his listeners, Steiner specifically describes "preparations" for the soil, as well as other distinct methods that were born from his deep understanding of the material and spiritual world. He presents a comprehensive picture of the complex dynamic relationships that operate in nature and provides basic indications with the practical steps required for their full implementation. This is the series of lectures that marked the beginning of the biodynamic movement.