“Three grand essentials to happiness in this life are: Something to do, something to love, and something to hope.” ~Joseph Addison, English poet and essayist There’s something magical about “The Rule of Three” — a time-honored literary device. Just for starters, there are three blind mice, three musketeers, three little pigs, three spirits of Christmas, three wise men, and the three fates. And of course, in countless myths and fairy tales, the hero on the journey is typically granted three wishes or given three tasks. I’m also a fan of Dr. Andrew Weil’s “Three Good Things” journaling exercise, which suggests making a list of three good things that happened each…