In this collaborative work by Swiss artists Peter Fischli and David Weiss, *Son et lumière (Le rayon vert)* evokes a sense of quiet wonder through its interplay of sound and light. The title references both the classic "son et lumière" spectacle tradition and the elusive meteorological phenomenon of the green ray, a fleeting flash of light that appears at the horizon during sunset. True to the duo's signature blend of the poetic and the mundane, the work invites viewers to contemplate rare and transient moments of beauty hidden within everyday experience.