I find it curious that this post is being down voted. While the weight issue doesn't address the new age or spiritual stuff, it does impact self esteem (which may or may not be intermingled with some of the more far out things she's confessed to experiencing). Besides, being healthy is just a generally good thing.
I feel that tailoring your approach to be more new age-y as Hollander suggested would be more effective - as in the wraith example above, it's within the rules she seems to operate by. However, I'm not sure how you would broach the subject without causing more problems. You kind of need her to want this for herself before you can do anything.
It gives bad advice. Aikido isn't particularly spiritual, it's a grappling martial art. Even things like internal styles of Chinese martial arts which pay a great deal of attention to the flow of chi are not likely to be considered "spiritual" in the American South. And I doubt that she'll actually like aikido.
Advice to go vegan is suspect, too. Vegans actually have to keep track of their nutrition to avoid deficiencies, if you just blindly stop eating anything animal you are likely to have health problems soon enough.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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