If you were water, what sort of water would you be? Would you be the water in a stream or the water in a tree? Or would you be ice or vapour? And what would it be like to be able to see the path of an ant or a star with the same clarity as we see the path to our own front door? All of these are questions you may ponder as you listen to this story about a traveller, and a tree ... and a stream.