That’s good stuff. Church-goers back then couldn’t read Latin or understand the preachers’ hocus pocus, so they shelled out for pictures they could understand.
I make small stained glass things. The light brings them to life.
Indeed - I’ve survived many a long and tedious sermon over the years by meditating on the beautiful, magical light coming through the lovely stained glass decorating the sanctuary - brought me closer to God than what most any preacher had to offer....