Rabbi Dr. Sam Lebens joins us to discuss his book, "A Guide for the Jewish Undecided: A Philosopher Makes the Case for Orthodox Judaism." He explains his motivations behind writing the book and the philosophical arguments he employs to tackle the complex subject of faith and religion. First, we dive into the introductory chapter of the book, which extensively explores the concept of Jewish conversion. Rabbi Dr. Lebens elaborates on his unique perspective of Jewish conversion and how this concept serves as the cornerstone for the themes developed throughout the rest of the book. A significant highlight of Rabbi Dr. Lebens' book is the chapter titled "The Unthinkable." This chapter illuminates the rationality underlying certain aspects of irrationality in life. Rabbi Dr. Lebens delves into the concepts presented in this pivotal chapter, explaining how they establish the essential framework for the entire book. As the conversation progresses, Rabbi Dr. Lebens breaks down the different arguments for God and the revelation of Sinai, encouraging the audience to directly engage with these sections of the book. The focus then shifts to the fundamental question of defining "religiosity." In this portion of the interview, Rabbi Dr. Lebens offers insights into his redefinition of the term "religious" and outlines three specific criteria that identify a religious person. He shares his philosophical perspective on these criteria and their significance. Throughout the podcast episode, Rabbi Dr. Sam Lebens provides an engaging and enlightening exploration of the themes, arguments, and concepts presented in his book, offering listeners a deeper understanding of the philosophical underpinnings of Orthodox Judaism, and serving as a guide for the Jewish undecided. Tune in to explore the different modes of rationality, the evidence needed to act on them, and how personal experiences affect religious beliefs.