I just responded to your other post and this one caught my eye. I think it's awesome that you are trying this instead of gastric bypass. Funny how people won't think twice about putting a knife to your gut, but tell em you're drinking lemonade and pepper and they go through the roof.
But remember - this is a cleanse and I believe robin quivers did this fast because she had some real health issues -- the weight loss being a perk that she wasn't necessarily expecting. So if you have a lot of weight to lose, this may not be the long term solution you're looking for.
I used this as a stepping stone to a healthier lifestyle, and to detox from an over-abundance of alcohol I was drinking. It worked I tell ya - I haven't been drinking since 4/23 and have no urge to.
I never saw it as a spiritual thing - but it did/has given me an opportunity to see my own life more clearly and that I no longer focus on food or alcohol to make me feel better :)