My feeling of four dimensional space-time came directly from my contact with the things I photographed. When I first became a photographer, I photographed with only a conscious awareness of objects and their physical qualities, plus an academic awareness of how to compose objects within the format of my print. It never occurred to me that objects had their own real time, and that space was fullness, ranging physically from solid objects to invisible air and light. In short, I never thought too seriously of either. Only when I became dissatisfied with object seeing and photographing did I seek another way. My search led me to a greater awareness that all objects were events constantly changing on sub-microscopic, microscopic and macroscopic levels in time and space. This included everything. My entire viewpoint gradually changed as did my pictures. For myself, I needed no definition to make me aware of four dimensional space-time events; I felt them.