What is the end in the story of the aged mother?

In the story "The Aged Mother" by Matsuo Basho, the mother and her son are spared from being put to death by the decree to kill all the elderly in the village. The mother expresses her gratitude for her son's kindness and the beauty of life by sharing valuable lessons with him as they journey up the mountain. In the end, they reach the summit and discover a lush valley below, symbolizing hope and renewal.