GG - I say go for it. I've often contemplated such retreats - and I have non-hippy sane friends who have tried them and got loads out of them. There's a book called Eat Pray Love - hideous chick-lit looking book - that is about a woman spending a year getting out of her comfort zone, part of which she spent in an ashram - and yes, it sounded really tough, but really worth it. I don't think being a city Jimmy Choo-wearing gal needs to stop you exploring other things. Why pigeonhole yourself? You might just find when you get back you walk a little taller in those Jimmy Choos....