The more I looked at his face [of Saint Sebastian] the more curious it seemed. That said, I seemed to have always known it and the aseptic morning light revealed its smallest details which such clarity, such purity, that I was impossible moved... In the upper part of the heliometer was St. Sebastian's magnifying glass... I put my eye to the magnifying glass, product of a slow distillation, at once numerical and intuitive. Each drop of water a number. Each drop of blood a geometry.