Not only does this broken glass symbolize the glass Walter crushed when he found out that I bought the house, but it represents Walter's broken dreams, and the way he broke my dreams when he didn't appreciate what I did.
Shape: positive and negative: positive shape is the totality of the mass lying between its contours; in three-dimensional work, the visible shape or outer limit of a form changes as the viewer's position is changed. These outer limits are seen as shapes moving back and forth between major contours. Negative space is empty space defined by positive shape. Sometimes referred to as occupied and unoccupied space.