The model examines the relationship between space, materiality, and time based on a specific spatial situation. Light entering through a window opening is spatially enclosed between the opening and the floor. The sharp edge of the window’s shadow defines the light volume, fixing a form generated by a precise temporal and spatial constellation. Scale, material choice, and repetition translate a fleeting light condition into a physical model. Time is not understood as sequence, but as a spatial structure made visible through light, location, and duration. The model condenses a concrete moment, preserving a spatial situation that has already passed.