DESPITE THEIR DIFFERENT-FROM-MINE SPIRITUAL upbringings, authors Dani Shapiro and Katrina Kenison and I find ourselves at a common juncture: the crossroads of What Does It All Mean and How Much Longer Do I Have To Figure It Out. To celebrate the just-released paperback edition of Dani’s latest book, “Devotion,” Katrina and Dani and I invite you join in an across-the-blogs discussion of where we find spirit in our lives. Maybe you’ll win our books; we have six sets to give away. Onward to enter!