Take a look at this video. It is the story of how people in the rural areas of Meghalaya, in India, connect and interact with nature and build natural bridges made out of tree roots! Reminds one of the blockbuster movie, Avatar. The video shows how an old man shares his knowledge of how these bridges are built with his grand-daughter. Someone from the source network said - very beautifully - in response to this video, "The joy of sharing the knowledge is its own reward".