the idea of the scintillae-sparks-which appear as visual illusions in the ‘arcane substance.’ These sparks Khunrath explains as ‘radii atque scintillae’ of the ‘anima catholica,’ the world-soul, which is identical with the spirit of God.
Jung introduces the alchemical scintillae as empirical symbols for the quasi-conscious luminosities of the unconscious, grounding them in Khunrath’s equation of sparks with the world-soul and divine spirit.
, The Structure and Dynamics of the Psyche, 1960thesis