phosphorus and sulphur point to a quality of the soul of things, and that quality is warmth. Because of modern physics and chemistry, heat is now considered to be not a quality but an increase in the average distance between molecules
Sardello argues that phosphorus, as a substance of pure levity that bursts into fire, discloses the warmth-quality of ensouled things, a perception suppressed by mechanistic science’s reduction of heat to molecular motion.
, Facing the World with Soul: The Reimagination of Modern Life, 1992thesis