Windows show up regularly in the dreams I have and those I hear from others. Usually the reference is to looking through a window and seeing something on the other side. Having heard these dreams worked in groups, there is often a layer of meaning that the dreamer understands a certain situation or problem from an intellectual perspective, but hasn’t yet taken it in emotionally. This makes sense to me in the sense that if there’s a layer of glass between myself and an object I can view it but not experience it through touch, or feeling. In this case, if I dream of shattered windows or glass that’s generally a sign that I’ve understood the situation in a more emotional way.
Glass is a curious substance that doesn’t fit with comfortable categorization. It’s actually a liquid, which is why very old glass gets wavy and sags so that the bottom of a pane is thicker than the top. So even when I look through glass at something in my dream, there’s the potential for that barrier to flow away. And since, in waking life, I look at the world through glass all the time, since I wear corrective lenses, glass for me is a symbol of how my point of view is shaped and brought into focus.
Windows can also represent my general outlook on the world. If in the dream I’m looking into a back yard, that might be a clue that I’m glimpsing something that has been unconscious. If I’m looking out over a grand view, my dream might be giving me a larger perspective. I also have to mention the phrase “windows on the soul,” which is usually a metaphor for the eyes. In dreams, windows do indeed give me a glimpse into my soul.