The presentation imagined by AtmoSud, Artcom diffusion and Les Orpailleurs de Lumière lasts eight minutes. Saint Didier Church becomes the visual and musical support of a world that breathes better. Such is the experience proposed around the project “Dans l’Air du Temps” projected within the framework of the Helios festival from Friday July 29 to Sunday August 28. Our project entitled “Dans l’air du temps”, was imagined around five tables. The latter play with the architecture of the building to generate real optical illusions and follow one another to the rhythm of a soundtrack. The spectator is invited to wonder about his movements and the way in which he can change his habits both for his well-being but also in favor of the quality of the air. What if, all together, we could build a different world and inspire, finally, a better air?