Janet Smith, Ph.D.a seminary professor and internationally-known author and speaker, provides important context for whyHumanae Vitaeis considered the most controversial, and one of the most important, encyclicals promulgated by the Church in modern times. She discusses how this document written byBlessed Pope Paul VIserved to prophetically warn the world of the dire consequences associated with artificial contraception and faithfully witness to the beauty of Gods plan for sex within marriage.