The special sculptural processing of the glass, which intervenes in the surface of the glass and is carried out with physical strength, means that Rudi Fieltz's figures represent the fears and conflicts of people in our time. Beauty and injury are combined in a work of art. When he shapes the silhouettes of the figures, when he engraves faces out of the glass, when he hits the glass with hammers in such a way that cracks radiate out from the point of impact across the glass surfaces, there is a risk of injury. But all of this is necessary to achieve the desired expression. For Rudi Fielitz, the mechanical interventions in the glass surface symbolize massive injuries that people inflict on people.