Martina della Valle’s (b. 1981) artistic research combines analog processes and digital media. Her works develop through archival research as well as participatory processes, giving rise to site-specific installations, objects, and printed materials. Under the Sun of Onomichi (2009-2011) is a project developed during a residency in the city of Onomichi, marked by events related to nearby Hiroshima. In this context, the artist studied the effect of solar radiation on the territory. A deep connection between light, the city, and the history of the place was fundamental to the creation of the work. The encounter with an origami master, portrayed in the photograph (2011), and the observation of his work, understood as a process of destruction and reconstruction, marked a crucial moment in the genesis of the project, offering a powerful metaphor for transformation, fragility, and the possibility of rebirth through gesture. Within the work, light takes on a dual meaning: it is both a symbol of destruction and of rebirth. The 12 cyanotypes from the Farnesina Collection document what remains of an ongoing process, crystallizing the element of light, central to the piece. Here, origami becomes a metaphor for the cycle of life: a perpetual alternation between dissolution and rebirth.