Refracted or differentiated white or non-observable (undifferentiated) light from the sun into observable color and matter. [See White Light, Full Harmonic Chord]
Differentiated White (not visible) Light into Visible Light
Just as the relationship of hypotenuse of face/base to centre of the Great Pyramid is Phi/1 (angle of face is 51.82729237). Which is the angle of incidence of the secondary rainbow often observed in the aftermath of large storms.
Primary Arc: 40° - 42°
Secondary Arc: 52° 15'
Circular Glory Rainbow
12 types of rainbows
Ark of the Covenant