1. The title of the article is Missing in Autumn. What did the author miss? Can the original title be changed to "nostalgia"? Tell me your reasons.

Not good, because it was when Yan Zhen flew south, when chrysanthemums were in bloom in Beihai, and because of my mother's physical reasons and my own reasons, I couldn't accompany her to Beihai to see chrysanthemums, but I regretted it. Since my mother left the author, it has become a permanent pain in the author's heart, so he has become the author's heart to miss her, so I took it as a topic.

From losing hope and giving up on myself to being full of hope, I understand the meaning of life.

Because the only concern before the mother died was the author, this sentence contains the mother's deep maternal love for her disabled son. It is also the starting point of the author's mentality change.