The narrator describes how as a child they were embarrassed by and resented their mother who had only one eye. The narrator confronted their mother and told her to die for embarrassing them. Years later after becoming successful, the mother visited but the narrator was still cruel to her. After the mother's death, the narrator learned that as a child they had lost an eye in an accident and their mother had given them her eye so they could see. The letter revealed the mother's lifelong love and sacrifice for her child.