The ground was also made using the same technical skill as the Mass. I used chip board as well as tacky glue to create a three-demential ground that the Mass rests on.
There are three levels to the ground: raised, flat-ground, and sub-ground. The raised ground, sitting atop the flat-ground, is built of rectangular bars scored into triangular facets. The flat ground acts as a transition space between the raised and the sub-ground. There are two sub-ground voids that create depth. These triangular voids are attached to the raised and flat-ground by receding walls.
I also made sure that the ground, like the field in the indexical, had very regular orthogonal lines.