This is an article about 'what is reality' from Adrian Cooper. There are some references to RV/RI about midway through. You will find some grammatical errors and typos because it's still being reworked, but it's worth a read anyway.
Eight Free Metaphysical Websites You Can't Live Without& (tags)
Religious ecstasy, being truly and completely in the present moment in the body - this is not exactly a sustainable state, now is it?