What events happen on the story of The Aged Mother?

"The Aged Mother" is a Japanese folktale about an old woman and her son living in a village where aged people were being sent into the mountains to die. The son decides to take his mother to the mountain, but along the journey, she imparts wisdom through poetic riddles, helping him realize the value of life and wisdom of the elderly. In the end, they find a way to save the aged people from their fate.