The purpose of Shambhala is about to help other´s to save others to cure others pain, in your daily life by raising your consciousness and being a warrior, fearless and brave, about how to become a real person and how to have a real enlighted society. Chögyam Trungpa was one of the best known Tibetan Buddhist teachers in the west. The source is this book are public talks and weekend seminars in the level five of Shambhala training program during the 70´s and 80´s.
I started reading the book with a lot of expectation. Some years ago I read “Shambhala: The Sacred Path of the Warrior”. This book is a sequel to that. However a few years later, the teachings here seem to me too metaphoric or elementary. Although the teachings are indeed valuable, Chögyam Trungpa just simply expose a sort of basic ideas like: “your personal feelings should be expressed freely to your friends”, “synchronize mind and body and try to have a good physical posture”, and so on. Other teachings are metaphoric but not too profound: “the primordial dot has no bias to either that or this; therefore it is unconditional”, “wisdom is what joins heaven and earth”, “humility, very simply, is the absence of arrogance”.
Being a Buddhist book, you should expect that sort of ideas. But from my point of view it lacks some kind of philosophic, psychologic, metaphysic, or spiritual explanations or discussions. Chögyam Trungpa says that he deliberately rejects to go into any kind of analysis of the Shambhala teachings. Just simply let follow the teachings, because they are good.
It is a valuable book because the Shambhala teachings are essentially good. But the benefit you could get from it depends on your actual spiritual path.