I have been in the island of Favignana so many times in recent years, but I had never entered so deeply into its identity, its history, its body. The uniqueness of this island is due to being completely excavated in half its territory. As a matter of fact for decades one of the most profitable activities was the extraction of a stone similar to tuff, good for construction, a calcarenite, a sedimentary material consisting of marine organisms, fossils and shells, used for most of the buildings on the island and all over Sicily and the Mediterranean. What does remain now of this subtraction, this emptiness, this darkness? I began a journey into this parallel, hidden and underground island, an excavated, upside down and surreal world, towards the heart of Favignana. In the underground I tried to imagine the people who worked in the quarries all their lives, without ever seeing the sunlight, living and working in very difficult conditions. They must have been very strong men, physically and emotionally. I felt their energy, sweat, blood, toil and their intimate and violent connection with the Earth. The blocks of stone that were extracted were called “cantuna”, the singing stone, because when they were beaten they created sound vibrations, from which the "pirriatura" understood the quality of the stone. If they were not good they were cantuna out of tune. So it was the earth itself, this living stone, that guided man, unaware, in the creation of these architectures of extreme beauty and intensity, similar to temples and cathedrals. I felt the connection between these energies, the intimate and visceral relationship between stone and man, between nature and architecture and I saw the art and the sacred generated by this encounter. In this surreal journey, I discovered the heart of Favignana, its most intimate history, I went deep inside, I walked in its veins, I felt its organs pulsating, I felt its energy joined to that of the men who hurt it in some way. I was amazed by how much beauty can be generated by a cut, by emptiness, and how much energy can emerge from subtraction, and how much light can rise from darkness. So I asked myself, do the veins, the heart of the Earth, its soul, together with the fatigue and sweat of men, have a color?