A window in a dream often reflects perspective -- how much you can see of a situation, or how visible you feel to others. A clear window can point to clarity or opportunity coming into view, while one that's broken or blocked may name a fear of being exposed before you're ready.
Abundance of smoke, untarnished animosity, observance of feast, intensity in invocations, procure as possible; election of the correspondences and minutia in the petition: those are the milestones of talismans. - Picatrix (Andalusia, ~1000.AD)