the decoration and ceiling descending the stairs at the Monasterio de San Juan de los Reyes in Toledo, Spain, 5/19/2019
It seems like an ornament reflecting a treble(G) clef. Regardless of the East and the West, all things can be expressed by numbers. We can read spirituality from universe in numorology. From that number, every structures are born. Music is a kind of number game because the pitch and length of the note can be written by numbers. There is nothing in the world that cannot be expressed by numbers. The head and tail of the treble(G) clef have two human-like heads. Might it not be an echo of an endless soul?