When I was tidying up my parents’ old house, I found a four-page handwritten letter which I had written to my mother 40 years ago. It was when I visited the US by myself for the first time, taking a paid holiday for a week. In the letter, I talked about how I was feeling about life, being an only child, working in an office, being in a relationship, and going abroad. I stopped cleaning, sat down, and grabbed some paper near me. I started writing a letter to myself. “Dear, 23-year-old me, this is the 63-year-old me in 2024. Treat yourself more nicely. Do not depend on others too much and find your own happiness. I know what you like to do, so do it.” I do not know why, but I had a strong feeling that my letter would reach the young me.  (145 words)