For the first time in English, The Essence of Aikido presents the profound philosophy of Aikido in Morihei's own words, disclosing many of the arcane secrets of Aikido's aims and methods. Considered by many to be the greatest martial artist and spiritual teacher of the twentieth century, Morihei provides a wealth of clues to the often puzzling nature of the inseparable link between the physical and spiritual aspects of Aikido, revealing the heart of the peaceful warrior's art.