I have found that the mind in Buddhism is not something to be encouraged. Also, In the book the teacher encourages the student to cultivate his imagination. For many Buddhists such an activity is going against much of the teachings on Dharma to reduce our fantasies and imaginations, which often distract us from the present moment of right here, right now. The Buddha taught that this present moment is all we have and I personally believe that gallivanting off into our dreams can be a really good way to lose focus and become distracted from true awakening.
That said, dreams can provide insights from time to time but attaching too much importance to them (I have found) just leads to more attachments. I have done astral projection before and while it was fun and interesting I didn't do much for me except cause me to attach to the warm fuzzies I often felt mentally traveling through fantasy worlds. It would probably best be appreciated in the Buddhist community by Tibetan Buddhists, who seem to be more open to dream analysis more than other schools. Especially the Dream Yoga and Dzogchen Tibetan Buddhist traditions. I do believe that sometimes dreams replay events from past lives but there is no way of knowing this for sure in a scientifically proven sense. However, I see most dreams as an amalgamation of the days events, worries, fears, hopes, desires and miscellaneous images. If we as Buddhists are too awaken to the illusory nature of our waking state then how is it that we should attach too much importance to our dreams?
The book did explain that if nothing else analyzing your dreams can bring about better sleep and relaxation during the day. Personally, it is quite distressing to have a nightmare and feel the distressing energy throughout the next day. So there suggestion in the book of combining dream analysis with meditation seems useful in letting go of the suffering that often comes with nightmares. Overall I personally wouldn't recommend this book for Buddhists who usually want to wake up from dream states, not enforce them. At least that's how I see it but I'm not a Buddhist master or anything. I know Buddha experienced dreams but somehow it's different, though I can't quite explain why. Perhaps it's that Buddha used his dreams to wake up, not enforce his delusions of the pleasure seeking self. As a Zennist who strips a lot of metaphysical aspects from his practice I'd give this book a 4 out of 10. If you're just looking for a good novel/story though I'd give it a higher rating. That said, I'd be happy to send this to anyone interested in it. Just email me: jaymur-at-gmail-dot-com. UPDATE: This book has now been claimed.