"I want you to do one simple thing. A trifle, one could say. You must go back in time. From the estuary to the

"I want you to do one simple thing. A trifle, one could say. You must go back in time. From the estuary to the source. From the end to the beginning. You have both traveled this way once. It won't be so hard to do it again in the opposite direction. We'll even help you by pointing out where to start. A flower is the end. Move to the beginning!"