(FKTh 2017-4, p. 304–318)
Wine and bread are material things. Normal matter consists of atomic nuclei, electrons and photons. Volumetrically the photons predominate. Photons are quantized light. The formulation of physical laws obeyed by quantized light requires vector spaces with infinitely many directions. The formulation of the physical reality of wine and bread is thus rather abstract. This abstractness of the physical reality of normal matter permits any faithful Christian to accept that transsubstantiation involves a supernatural transition from invisible natural light to equally invisible supernatural (divine) light.