Rav Soloveitchik on Teshuva (1): The Duality of Sin and the Duality of Repentance, by Rav Dovid Gottlieb

First in a series of mini-shiurim on R Soloveitchik's approach to Teshuva based on his famous and incredible sefer Al HaTeshuva In order to understand how teshuva works we first need to understand the impact of sin - once we appreciate in what way(s) sin is damaging, then we can analyze how teshuva rehabilitates us.