I have mixed feelings about the writings of Stephen Flowers / Edred Thorsson. Often they are wildly interesting. The subjects he finds and the way he works them out. At other times they are mildly interesting. The latter ‘category’ usually includes Thorsson’s ‘system’ and working for his Rune-Gild organisation.
The Nine Doors Of Midgard is a book that you have to work through and report on when you want to join the Rune-Gild. I guessed it would say a lot about the Rune-Gild system, symbolism, etc. and it sure does! The Nine Doors have been revised a couple of times and if I am not mistaken, the 2016 edition is the last one. The “doors” refer to sets of practices and exercises. These often involve meditation and visualization exercises, chanting, runic postures and the like. The book is supposed to form a path to allow the practitioner first to be able to join the organisation (after two or three doors) and later expand his/her magical abilities. The exercises mostly have to be performed for many days, which makes a period of several years to work through the entire book. The Rune-Gild certainly is for people with perseverance only!
As I know from other practical books of Thorsson that I read, his system is not for me. Pretty soon after starting the book, I started to quickly read through the exercises and see if the more theoretical parts would be of more interest. Here and there they are, but also in these parts, Thorsson is often not my kind of thinker.