REM:
One of the books written by Susan Blackmoore sounds interesting (if I can find it cheap - I'll get it), yet she still "does not know" whether there is "another side to this life" after her own research. She appears to have dropped her former set of beliefs which included dabbling with Tarot and altered states of consciousness to attain enlightenment. She is also agnostic, which is fair enough for her, but then says a lot about where she is coming from as far as her studies are concerned.
You cannot be a mystic and agnostic, the two do not sit well together and conflict arises. Both are a personal choice.