Seeming to take flight towards the heavens, the slender figure of the somnambulist defies the laws of balance, perched on a sphere, itself resting on the edge of a cubic volume. This bronze and steel sculpture, installed in 1983 on the Place de l'Iris, creates a surprise in the midst of the towers of La Défense.

Henri de Miller was born in Mulhouse in 1953. He took up drawing in Paris, first at the Atelier Lecomte, then at the École Nationale des Métiers d'Art. He also created Ecoute, a sandstone sculpture in Place René-Cassin. He died in 1999.