The following marvellous article about the windows in Emily Dickinson's house has reminded me of my own fascination with the reflective, refractive and distorting qualities of glass:
https://sites.udel.edu/mcses2012/pape...My own interest in the aesthetics of the imperfections in glass began when I lived in England, and took this big collection of photographs of windows in churches and other public buildings:
https://www.flickr.com/photos/2932096...... Which also culminated in this poem:
https://www.youtube.com/watch?v=DxEoP...Of course, the other thing about windows is that they are framing devices; you can compose different pictures depending where you stand relative to a favourite window. A few minutes' thought about windows in literature will show how powerful a window is for an author as an observational device.
But I love most of all the insight in Xiao Situ's article that nineteenth century (and earlier glass) always contained something of the breath of the glassblower, just as a poem always contains something of a poet.