I am closing in on 100. When I reflect on the many satisfactory experiences of my long life, I must include my correspondence with some of the world's most fascinating people. There is a special sensory enjoyment involved in writing a letter, stamping the envelope and sending it on its way. Whether you are getting something off your chest (some letters are indeed written in anger) or writing a love letter (my own favorite), it remains the most personal way to communicate, especially when written by hand.
After my stroke, I had fans who wanted me to tell them about my road to recovery. Answering their letters became part of my therapy, and signing them in my own handwriting part of my pleasure.