This is my illustration and interpretation for:
Robert Fludd: "We can also represent these dark and light pyramids as two combs: a light one representing the downward-pointing spiritual forces, and a dark one for the material world (see No. 1). As an adaptation of these combs, we present the the two hemispheres of No. 2, the upper one corresponding to the male, generative nature, and the other to the female, receptive to the seed of light. This material hemisphere is like wax which can be formed by the seal of spirit."