new to dostoevsky! should i start with TBK?

yo!

i've never read dostoevsky but i've been looking to get into him. i hear that elements/themes of christianity are huge in his works. this is something that interests me a lot as i've been reconnecting with my faith as a christian. i'm on my way to b&n as we speak and i wanted to check with fans of his that this was true. thinking of picking up brothers karamazov and the idiot later maybe. thanks in advance! [: