Are you there God? It’s me, Dwight. ‘Soul Boom’ is Rainn Wilson’s new book about spirituality.

Rainn Wilson, former son of Wilmette, Illinois, and security guard at the Baha’i House of Worship on Sheridan Road, New Trier High School graduate, best known as Dwight Schrute on “The Office,” can bet what you’re thinking. He can see…