The Book begings with discussions on the Nature of Dreams and their relationship to "Reality" and Karma. He also provides an introduction to breathing, chakras and the nature of dreams before moving on to the actual practice. Here another great feature of the book is the emphasis that the practice can be gradually incorporated into one's life, but that already from the beginning one can benefit greatly. I think that this is very important, because otherwise potential practitioners might be discouraged, because the practice is quite involved and requires great discipline. The book ends with elaborations on the practice as well as kind encouraging words from the author.
What a pleasure it is to finally have a book that describes these important practices, which are instructions for understanding our reality, our dreams, ourselves and are preparations for our eventual death. I highly recommend this book, and am looking forward to more books by Tenzin Wangyal Rinpoche.
Another important point is that one needs to review the day before sleep to help remove or soften any karmic impressions received during the day. With these impressions softened or removed one should be freed from base karmic dreams and have more of the desired type of dreams.
I found the most important information contained in the last couple of sections of the book. Tenzin Wangyal elaborates on the end result and aim of the practices which is the constant abidement in rigpa. He writes as one who know this state well and not just one who's read about it.
Well, first off - if you've ever wondered if there is a God, you'll find your answer there.
Not only does this book explain the metaphysical aspects of the science which lends to itself great insight and solid explanations on the form of reality but it goes to show how you can put theories into practice.
By awakening in your dreams, this book provides proof that another realm of consiousness exists and as you grow in practice with lucidity and all the while attaining greater states of lucidity, you come to realize that there is a whole new world out there.
In short - great book. A little bit terrifying at times but good :)