What is prima materia?
In the French version, the prima materia ("primary matter, first matter") is a foundational principle of alchemy, though the details differ between editions. The name is taken from real alchemical texts, although the French writers interpret it quite liberally. Furthermore, the word materia in alchemical contexts doesn't simply refer to matter as we understand it, but to the created world (see A dictionary of western alchemy by Jordan Stratford). The prima materia is the residual Ka present in all material objects, leftover from the original formation of the Earth and the movements of the magic fields. It is the origin of matter. Alchemy operates by acting on this prima materia , activating it and causing the desired magical effect. The alchemical substance generates its own miniature magic field, which resonates with the ambient magic fields of the Earth to produce the spell (so alchemy spells cannot be cast if the appropriate magic field isn't present). In editi...