Once in a while my wife and I open the mail to find a letter with no words on it. When we take the “letter” out of the envelope, we see a piece of paper with nothing more on it than a colorful mark made with a felt pen. Those “letters” warm our hearts because they’re from our preschool granddaughter Katie, who lives in another state. Even without words, these letters tell us that she loves us and is thinking about us.