Lumen naturae

The light of the world is the light of nature and the celestial sulphur, whose substrate is the aetheric moisture and the heat of the firmament, namely Sol and Luna. (Gerhard Dorn, Theatrum Chemicum; requoted from C. G. Jung, vol. XIV, p.114, who explains: โ€œSulphur has here attained cosmic significance and is equated with the light of nature, the supreme source of knowledge for the natural philosophers. But his light does not shine unhindered, says Dorn. It is obscured by the darkness of the elements in the human body.โ€)
ยฉ Wundersaar