Romney’s pressing need to inject some authenticity — or at least some personality — into his campaign is the primary reason he should talk more about his faith. Take away Romney’s religion and you are left with Harvard, Bain and various corporate boardrooms. Mormonism has been one of the main stages for his leadership, as well as the main setting where he has displayed humanity. He has been a missionary, a lay minister, a spiritual guide. He has delivered sermons, counseled couples and worked with leaders of other faiths. Mormonism is the reason for Romney’s rectitude, the explanation for his wholesomeness, the key to understanding his persona. Without it, he would merely be a stiff, able management consultant. Romney’s reticence on religion leaves a large personal and biographical gap.