Which Catholic Doctrine Troubles You?
Questions Covered:

07:18 – I am troubled by the doctrine about the Virgin Mary called the Debitum Peccati. It has to do with the Immaculate Conception and her freedom from original sin. How can I better understand this? 
18:11 – It seems like Catholics worship both Jesus and Mary. Is that true? I am a Lutheran. 
29:44 – The doctrine about purgatory troubles me. What is temporal sin? 
37:20 – I am troubled by Catholic doctrine on salvation. 
47:35 – I am troubled by the role of the Magisterium and tradition, when there doesn’t seem to be biblical evidence for some things.