Prima Materia
The Prima Materia (First Matter) is the foundational concept of alchemical practice. It is the original, undifferentiated substance that exists at the beginning of the Great Work—a substance that is theoretically "everywhere and in everything" but remains hidden and "base" until purified.
Historical Context
Alchemists used hundreds of cryptic names for the Prima Materia: "Our Mercury," "The Virgin's Milk," "The Chaos," or "The Dragon." The goal of the first stage of alchemy (the Nigredo or Blackening) was to reduce matter back to this primal state, stripping away its specific forms so that a new, divine form could be imprinted upon it. In Hermetic terms, it represents the potentiality of the "One Thing" mentioned in the Emerald Tablet.
Scholarly Significance
Psychological interpretations by C.G. Jung viewed the Prima Materia as a symbol for the unconscious—the raw, chaotic material of the psyche that must be integrated to achieve wholeness (Individuation). Historiographical research emphasizes it as the alchemist's way of engaging with the "pre-cosmic" state of reality, a chemical re-enactment of Genesis.