The river, when it floods, is a source of great benefit and a cause of destruction. The floodwaters, when they rise, are a cause of great destruction, and when they recede, they leave behind a fertile soil that is a source of great benefit. The river is a source of life and a source of death. It is a source of sustenance and a source of destruction. It is a source of blessing and a source of curse. The river is a source of joy and a source of sorrow. The river is a source of hope and a source of despair. The river is a source of life and a source of death. The river is a source of sustenance and a source of destruction. The river is a source of blessing and a source of curse. The river is a source of joy and a source of sorrow. The river is a source of hope and a source of despair.