In Tenchi (Heaven and Earth in Japanese) the author convincingly argues that the connection between mind and body is part of mankind's natural heritage of power. The book consists of a series of essays that makes use of historical and contemporary material to show how that power has always been available as a free and natural resource. The author draws on his own personal experience in both Zen and Aikido training over three decades to suggest that disempowerment is a matter of choice rather than fate. The book discusses what that power is, where it comes from and how to cultivate and use it responsibly.These essays will entertain and inform, while respectfully nudging the reader away from the entanglements inherent in the pursuit of the exotic and esoteric. Tenchi argues that mankind is not an isolated creature, but part of a massive energy exchange system that we ignore at our peril. The author presents a view of man as an agent of power with the innate capacity to realise that power and the responsibility that comes with it.These essays challenge the reader to explore the legacy of power left to us by our forefathers. Man stands in the centre between heaven and earth. This position endows us with a unique opportunity to draw power from nature, and to develop a natural store of energy, wisdom and compassion that can transform our relationships with each other and our environment. Tenchi is not a 'how to' book, but it does provide some simple mind body exercises that the reader can try out for themselves. Tenchi points the way to a more expansive view of mankind through the practice of mind body training, and reminds us that the power that nature has bequeathed us is the only infinitely renewable resource that we have.