So I asked my father, your great-grandfather, whom I considered the best, most kindhearted man I knew, to write a letter to me. I told him it didn’t matter what he wrote about. Just write, I said. Write anything.

Darling,
You asked me to write you a letter, so I am writing you a letter. I do not know why I am writing this letter, or what this letter is supposed to be about, but I am writing it nonetheless, because I love you very much and trust that you have some good purpose for having me write this letter. I hope that one day you will have the experience of doing something you do not understand for someone you love.
Your father.