A ray of light

A ray of light refracts itself
On my half filled glass of water.
And draws a design on my
Wooden dinner table.

I rotate it at an angle
To see it form and reform
With a geometric precision
That no law of science can challenge
And a beauty
That no painter can ignore.

The answer to this enigma, some say,
Is emboldened in the bulky books of science.
And others say it is
Surreptitiously hiding in the Mysteries that make nature.