Rod Dreher explains why, in 2006, he left Catholicism for the Orthodox Church:
The main reason why Orthodoxy is so attractive to converts, at least to this convert, is its seriousness about sin. I don’t mean that it’s a dour religion – it is very far from that! – but rather that Orthodoxy takes the brokenness of humankind with appropriate seriousness. Orthodoxy is not going to tell you that you’re okay. In fact, it will require you to call yourself, as St. Paul described himself, the “chief of sinners.” And Orthodoxy is going to tell you the Good News: Jesus died and returned to life so that you too might live. But in order to live, you are going to have to die to yourself, over and over again. And that will not be painless, and cannot be, or it’s not real.
Because of that, for all its dramatic beauty and rich feasting, Orthodoxy is far more austere and demanding than most American Christianity. The long liturgies, the frequent prayers, the intense fasts – all make serious demands on the believer, especially comfortable middle-class Americans like me. They call us out of ourselves, and to repentance. Orthodoxy is not interested in making you feel comfortable in your sins. It wants nothing less than for you to be a saint.