Sometimes described as a “spiritual science,” biodynamic viticulture is a holistic approach to farming wherein the vineyard is considered a regenerative living organism. Vineyard practices such as pruning are done according to the movement of the moon through the twelve houses of the zodiac. Various natural organic preparations, such as homeopathic teas, are applied to the vines at various times of the year. The manure of grazing animals is used as natural fertilizer; no synthetic chemicals are ever used. The stated goal of biodynamics is to align all of the forces of Nature, creating a natural harmony. Biodynamic viticulture is based on the teachings of the nineteenth-century Austrian philosopher and social reformer Rudolf Steiner.