A tree buries its crown in the tarred ground sealing the earth and stretches its roots to the sky. The motif of the inverted world becomes a warning sign here: The partially mirrored glass roof, carried by the roof reflects anti-nature or gives the view into the bluish nothing.
Helmut Schneider (Ed.) et al.: Pino Poggi. Verlag Silke Schreiber, Munich, 1986, pp. 64–65