As I suggested earlier...
http://www.ehow.com/about_5689498_sympt ... tions.html
admittedly not the most rigorous scientific source, but good enough as a stopgap for the present. My point is that there may be a material basis for the kinds of behaviors we see described here: visions and revelations from "Cosmic Buddha," growing a lotus out of your head... Kennett was ill and her illness was not addressed properly. Who is responsible for that?
It is also quite possible for it to be both. I imagine there are also many schizophrenics who are both schizophrenic and
having actual visions. A nasty cocktail.
I am not an expert, but my impression of reading some of these accounts is of someone with some depth to her having visions and remembrances and, lacking received learning and and/or proper guidance on how to navigate such things, was having to come up with her navigational tools for it. As a rampant diabetic, she might not have been well positioned for that.
Maybe the "cosmic buddha" was a mahasattva of some sort, which she named as "cosmic Buddha". That buddhist practitioners should have such encounters shouldn't be terribly surprising to one who takes the mahayana sutras a little bit literally. But I can well imagine that the diabetes and so forth would make such a person liable to misinterpretation and overreliance on such visions and voices. Without proper guidance or a very still and de-agendafied mind (for lack of a better word), the boundaries between genuine 'channelling', intuition and just plain imagination can end up getting quite blurred. And relying on it to such a degree so as to consult on choices of cars and sharing such things with others totally unfiltered suggests at best a rather naive approach to managing such things, more probably self-taught skill dealing with such phenomena having veered into delusional territory as well.
I suspect many such things are a product of visions filtered through various lenses of delusion. That is in itself not a big deal. Unless you are a mahasattva, it seems to me hard to avoid. The key point is whether they are useful or not. But once you starts taking such appearances very literally and rely on them without more than a few grains of salt with regards to their accuracy, it can become a potent cocktail for wild tales, even if they are wild tales somewhat rooted in the real thing.
I don't know how true any of that is of Kennet. Not my business to say really either. Just spitballing on the topic based on what is being written.