Writes the Tzemach Tzedek:
"One shouldn't learn sifrei kabbalah, because one who doesn't know how to strip the words of their physicality -- he will become exceedingly physicalized [in his understanding] through this study, giving form to matters of G-dliness, etc."
In this letter the Rebbe refers to the questionable book and writes:
"Whoever will flip through the pages of the Arizal, even a beginner, would ridicule the book (if there wouldn't be a case of "cutting the shoots", may the Merciful One save us)."
In the end, the Rebbe concludes that such a book, al pi halacha, should be burnt.
The letter of the Rebbe quoted above is, IMHO, applicable in the case of the "teachings" of the subject of this thread.
