Trés Hermanos

Just finished chapter 4, and I've now been introduced to all three brothers. Interesting to see the disparate paths and personalities of the three. To me, Dmitri seem most like Papa Karamazov, while Ivan and Alyosha are further removed. I'm looking forward to the three brothers meeting, to see how the personalities play out. What was Dostoevsky commenting on with each Karamazov? Not sure on Dmitri, but Ivan seems to symbolize academia and Alyosha, the church.