This book was recommended to me as a means of getting to grips with the philosophy non-duality. The author, a Tibetan lama living in California, approaches it from the Buddhist perspective, although he does not use any Buddhist terminology.
The book places a heavy emphasis on visualisation exercises as a means of getting past our conditioned understanding of the world. For the most part I didn’t pause to try these out, as I’m already accustomed to viewing life in non-dual terms, but the exercises did strike me as useful to newcomers. I’ve even developed a few of my own in the course of writing my own book on esoteric matters.
Tulku suggests a model of reality that views it as consisting of three fundamentals: space, time, and knowledge. These are not really separate, as each cannot exist without the others. Scientifically minded readers will already be familiar with the term space-time and will know that we cannot properly consider time without space, nor space without time. Tulku suggests a “trinity” of inseparable elements: space-time-knowledge. This is very similar to my own personal view of reality as mind-space-time.
The real drawback of the book is in how technical it becomes. It is very easy to become confused when reading. And yet I would not accuse the author of being pretentious. There were sufficient cues in the text that let me know he a man of considerable insight. As an effective communicator, however, he fails. Alan Watts, for instance, has communicated similarly stunning insights with far more straightforward argumentation and vocabulary. If Space, Time, and Knowledge had been my first step into non-dual philosophy, I think I would have given up in frustration.
In the end, Tulku also commits the great error of so many spiritual teachers: a lack of realism about life. He asserts that life can be lived with a drastically different sense of awareness from what is common. While that is true to an extent, I always like to remind myself that one day I might find myself being chased down an alley by an assailant. In such a situation, does the philosophy of this book help me in any way? No. That’s the real acid test. So all this talk about every experience being an unending feast of beauty is mere talk.
Overall, Tarthang Tulku communicates much less fluff than Eckhart Tolle or Deepak Chopra. Time, Space, and Knowledge is a deep but unnecessarily difficult book. It has its moments, but I would not consider it essential reading.