Through the integration of light, regardless if passive or active, Mack'sobjects are taken out of their sculptural environment and gain an independent component. It is no longer just the materiality of forms that make for the overall impression, the light clearly determines their expression. Our work once more shows how much Heinz Mack was occupied with the influence of light, three-dimensionality and the resulting optical phenomena in his art. These key concepts are particularly well implemented in this work from the work complex of "Flügel" artworks, for the interplay of the filigree wings, executed in honeycomb structure, in front of the shimmering background evokes remarkably sensual optical impressions that vary from perspective to perspective.