Answer: The narrator suggests that the main reason why her mother can still safely negotiate her New Hampshire home is that she has gone through a lot of leaps in her life, risking it and saving her daughter, that even when she is blind, she has learned many lessons and has become wiser.
Explanation: The Leap is the story about the narrator's mother, who has gone through three leaps in her life, including overcoming her first husband's passing, trusting again in love with her new husband, and saving her daughter's life on a fire. The narrator suggests that after all of these events, her mother has become wiser in life, and, although she is now blind due to cataracts, she can still safely handle herself in life, therefore, negotiating her New Hampshire home.