n this episode of KT Q&A podcast, we address the request of our regular reader. In summary, we answer the question: what is soul? The subjects contained therein are the nature of soul, its relation to body, what it means for something to be substantial form, traditional understanding of actuality/energy and possibility/potency, unity of human being provided by the soul, soul as a "horizon" (Thomas Aquinas) between physical and spiritual world, the powers of the soul and the critique of many souls instead of one, potentially posthumanist implications of denying the unity of the soul and much more.