I have been many years training in the way of strategy, called Ni Ten Ichi Ryu, and now, I think I will explain it for the first time. It is now during the first 10 days of the 10th month in the 20th year of Kanei (1645). I have climbed mountain Iwato of Higo in Kyushu to pay homage to heaven, pray to Kwannon, and kneel before Buddha. I am a warrior of Harima province, Shinmen Musashi No Kami Fujiwara No Geshin, age 60 years.
With the virtue of strategy, I practice many arts and abilities - all things with no teacher. To write this book, I did not use the law of Buddha or the teachings of Confucius, neither old war chronicles nor books on martial tactics. I take up my brush to explain the true spirit of this Ichi school as it is mirrored in the way of heaven and Kwannon. The time is the night of the 10th day of the 10th month, at the hour of the tiger.