After reading John Stevens' excellent translations, interpretations, and his own comments on O'Sensei's 'Heart,' I feel much more confident in my own teachings of Ki in Aikido. Nearly 40 years have passed since I began as a neophyte trying to understand Aikido as taught by O'Sensei through several outstanding masters in Ki Aikido. Throughout these years I gradually learned many parts of this difficult martial art. However, I had difficulty understanding Aikido as a whole.
Having now read, and continuously re-reading of "The Heart of Aikido,"I'm beginning to visualize and 'see' the whole of Aikido. I'm grateful and appreciative of John Stevens' efforts in attempting to share with committed students of Aikido, such as myself, his excellent translations and interpretations of O'Sense (Morehei Ueshiba Sensei). "The Heart of Aikido" is an excellent reference text for any serious student of Aikido.