This underpass serves as a makeshift home for a number of homeless people in Montreal. They have left their marks on its walls – graffiti that expresses their sense of identity and purpose. Perhaps that purpose is just to get through another day – that may be why a white chalk line runs along the walls and through the arches. I used a 14mm wideangle lens to make this image, coming as close as I could to the arch, yet still including the litter on the ground and adding dimension by reaching through the arch into the next vault, where someone has left graffiti that itself is dimensional in form.