Like I say I've read all of her major works (read them all, not understood them all ), and for me her writings come off as benevolent in nature. That's all I need to know about the source.
Her life is mysterious for sure, what we do know is she came from nobility, traveled many places including India, and probably had more then one source. I see her as a synthesizer of many of the world religions and mystery religions. Not an easy job, especially back then.
Hmmm, why would she want to synthesize world religions and mystery stuff?
That sound like pre - new age (really an old Babylonian idea) stuff with new world order and one world religion that many of Camelot speakers speaks of.
She stated that she was Luceferian in one of her works... that is enough for me to take her not with a grain of salt but with a bag of salt.