Although the author succeeds in explaining Nisagardatta's mysticism in general terms, this is the most complicated presentation of non-dual philosophy and "self-enquiry" that I have ever read. The material is presented in a rather impersonal and cryptic way which is not very uplifting, nor motivating if one chooses to study this philosophy. The author states that spiritual exercises will not help the aspirant gain "self-realization" and that, indeed, the individual is not real but only a phantom of one's own imagination. The "Absolute" is seen as impersonal, not aware of itself, and no cogent explanation is given to the growth of relative reality. I feel a better choice in explaining this non-dual philosophy and "self enquiry" Is "I am that I am Talks with Sri Nisagardatta" by Maurice Frydman