A forest sometimes shows up in two conflicting images. It could be a king-size portrait in high-definition jade—almost surreal, a place where gods descend to update their screensaver. Or a gothic single-tone of what it could become: bedeviled, stark, a dark hole swallowing space and time. Dehing Patkai is one such. It’s a wildlife sanctuary in eastern Assam bordering Arunachal Pradesh, one huge jungle in a cluster standing cheek by jowl to form a mega green belt. A carbon sink; the lungs of our land. It is the last remaining dipterocarp-dominated lowland rainforest. Dipterocarp? Those tall trees found mainly in SE Asia, harvested for resin and timber indiscriminately to near-extinction.