'Water, especially the sea, opens our thoughts.' Since the late 1960s, Fabrizio Plessi (b. 1940), one of the most renowned conceptual and video artists, has addressed the element of water and, later, also the element of fire, which he views as symbols of temporality. With these, he facilitates a direct and impressive experience of the power of nature. The catalogue presents, among others, Plessi's work for the facade of the Kunsthalle Recklinghausen with its alternating columns of blazing fire and masses of cascading water.