I assume she has been baptized as a baby, but the more enthusiastic groups that advocate for adult baptism don't think it counts. The person has to make a personal decision, which a small child cannot do (I don't know whether they think children go to Hell if they die before proper baptism? But I guess that's for the loving god to determine, huh?).
In any case, adult baptism is only practiced by sects in Finland, the standard Lutherans here are very mild with anything basically. A person can be baptized as an adult by Lutherans as well, if they were not previously, and they join the church, but that is the little sprinkling of water thing. Full body dunking in itself indicates a more fervent group, and doing it in a frozen lake is outright extreme.
If there was ever any doubt that the type of faith she has found would be rather moderate and it's just a question of vocabulary, that's out now. These are zealots. I sort of already assumed so when she mentioned having a "study Bible", because I don't think there is a moderate study Bible in existence... I feel uncomfortable speculating about her faith, but it's so very clearly not your run-of-the-mill Finnish Christianity now that I had to make this comment. As it makes her happy, I wish only good for her on her journey, but I have to say all this tastes bad in my mouth.
I don't know, should this part about the baptism and a few of the previous messages go under the LP thread?? Or somewhere else than here? What do you think?