You must feel an affinity for what you are photographing. You must be part of it, and yet remain sufficiently detached to see it objectively. Like watching from the audience a play you already know by heart.
In 2005, I went to Nepal to try to photograph Nepal's Maoist rebels. Lodged in their mountain safe areas, they had already fought a decadelong insurgency against the Kathmandu-based establishment. What started out as a poorly armed, ragtag rebel movement had by that time fought the Nepali army and armed police forces to a bloody stalemate. More than 10,000 lives had been lost, the human rights of thousands violated, but at that time no end seemed in sight—neither the more than 200-year-old Hindu monarchy nor the democratic party establishment could quash the rebel movement, and the Maoist insurgents couldn't militarily take over Kathmandu.
Chili: Les routes de la mémoire by Patrick Zachmann
Photographer Patrick Zachmann devotes himself to the observation of groups of humans, as a means of questioning their identity and their culture. In this book, he rediscovers Chile, three decades after Pinochet seized power. His images of abandoned villages and derelict industries lost in the desert, which can be reached only by driving endless roads, help us understand the anxiety of the place.