Parashat Acharei Mot - Kedoshim - The Yom Kippur Teshuva Service

Parashat Acharei Mot is NOT about Yom HaKippurim, though the ritual described is to take place on that day. Rather, it is the avoda of teshuva, performed on the day seen as the culmination of the teshuva process. We will try to understand the idea behind the avoda of teshuva. What is the central feature of teshuva that takes place  in the Beit haMikdash, when the kohen determines that Israel is in need of some sort of avoda of teshuva? We look at the two types of teshuva in Rav Soloveichik's thought, ponder why there is a reference to the Nadav and Avihu story, and consider how one can ennoble a sinful past.