I posted this on ABC... I saw a significance of Locke building his sweat lodge in the middle of Eko's church: a symbolism of Eko's strong Christian faith encompassing Locke's spiritual (some would say 'pagan') faith in the island. Someone replied that Locke may have seen Eko's church as sacred ground...
Has anyone here ever been in a sweat lodge?
we have a sweat lodge really? not that i need to say this, but don't tell anyone.... several years ago I was seeing a therapist and he was studying to be a shaman. He told me he had a sweat lodge in his back yard and people would come over and use it.... he would mention it in passing and we never talked about it because that would be crossing the lines of our relationship. But I always wanted to ask! He gave me a 'recipe' for a medicine bag mixture that was kinda cool, though.. It did help me :)
Here's something I just found from the script editor for Lost regarding epi 3...
I think the episode was structured around Locke's mindset and how much he desires to have a "family," even if it means going to lengths with people that may not be trustworthy to get it, as we saw in his flashback. I think it was also trying to show that Locke has gone to great lengths to find any family. (It was northern California, and Locke is from southern California.) And now that he's on the island with a group of people he didn't choose, he simply has to make the best of it. That also means facing up to reality and dealing with the mistakes he made in the past. I thought it was interesting and also very touching.
Because we were over our time length for this episode, Damon and Carlton made the cuts based on what they thought the most important emotional elements were to the story. The arrest of Mike, Jan and the other communal members weren't that important to Locke's emotional journey. If we had time, it would've been nice to know what happened, but the important moment was whether Locke would shoot Eddie or not, and what that meant in terms of his character. That's really the climax of that story, and it mirrors the climax of the island story. So seeing the outcome of the island story is more important than the flashback story, so that's why it was eventually decided to cut it.
I'm not trying to justify it or defend it -- I think creative pieces either work for you or they don't. It's obviously okay if it doesn't, but hopefully this will help you understand where the writers were coming from. And obviously knowing that, the episode can still be disappointing.