Maybe I just didn't get it. Or maybe trudging through the first part of the book (50 pages or so of stream of consciousness ramblings) put a bad taste in my mouth and prevented me from enjoying the rest...regardless, I found this book to be excruciatingly boring and lacking any sort of insight. What the plot/story was missing was not made up for in Lessing's writing style.
It seems that the jury is out on this book, either the reviewer hates it or praises it as a mind-blower. I fall into the "hated it" category, as I was not interested in this one at all. Those that enjoyed it praise it as an original work of sci-fi/fantasy or as a thought-provoking exploration of insanity. I found it to be neither.

I consider this to be a very shoddy piece of literature. A trivialisation of mental illness couled with what is essentially a very boring story. No insights no vision not even well written.

This book, along with William Styron's "Darkness Visible: A Memoir of Madness" and a keen interest in Jung and his archetypal analysis of reality and myth, cemented my interests and made me feel not quite so alone in my condition when I read them in my emotionally tumultuous mid-twenties.

A creative and open mind may find themselves skirting the edge of depression and psychosis at many junctions in their life, seeing things, PERCEIVING things through the thin veil that is their surface reality--some call that poetic understanding, others, perhaps, madness. Self-aware, this sensitivity can be an enormous strength...rather than a defect. A dangerous statement, but some of you may know what I'm saying (Lessing did when she wrote the text). In short, if you're looking for a precise clinical exposition on the subject of insanity look elsewhere...but if you're looking for a thoroughly unique (and yes, challenging) study of what madness may MEAN in the context of a number of layers of existence, then this is a heck of a read.

"Briefing" does start out quite slowly. I grant it's critics that...but alas, so do many great literary experiments. It took me several times before I got past the first sixty pages, but, then, taking time with it, I found it wholly rewarding. Like the most important reads of my childhood (I mention here works of Madeliene L'Engle especially), concepts of cosmology, religion, science and humanitarianism all become interwoven. Insanity is more a plot device than the main subject of "Briefing." That symbolism observed via a surreal experience, that empathic judgements and emotional responses are not just pertinent but crucial in the very real human quest for inner meaning--this is more the core of the book. Its an analysis of that which drives a hero to break free from the mundane and strive to elevate her/hisself, a portrayal of that internal calling to"something more."

Those that dismiss "Breifing" as boring pseudo-scientific babble, another late-60s 'bad trip', critical of its lack of action-packed pacing, well, they just don't get it...you're meant to take your time with a read like this, re-read passages and FEEL it. Otherwise, the cold tragic ending won't have its punch, and you will find yourself alienated from the purpose of the book, much like the doctors of the story are clueless to the main characters true 'raison d'etre.' Read it...be patient and open and, unlike most other books, you'll not forget it!