I've Got a Secret Book

I have known of this book's significance within the Golden Dawn for many years, but I only picked up a copy a few months ago at HPB. Levi mentions Eckartshausen in DRHM, so I pushed it to the top of my reading list. The book consists of six letters; the first three letters gave me enlightening insight on the some of the core principles of the Golden Dawn, while the last three did not interest me as much, in part because the raving about Jesus as sole lord and savior increases significantly in the last half of the text. I did not read any of the accompanying commentary or translators notes, preferring to come to my own conclusions. Well, that and the fact that Waite authored the introduction...