Since ancient times the sword has been intimately associated with the warrior. In Japan, the sword was so identified with the Samurai that it was thought to embody his soul. It has long been regarded as a weapon of honor and holds a mystical place in the combat arts of the world. This emphasis on the sword exists in Ninjutsu as well. In fact, Soke has stated that to properly understand budo one must master both the sword and the bo. Historically, the sword was a development and refinement of the bo and can be seen to share many of its characteristics. In ancient times, the sword was made of wood, metallic swords only being available to the most privileged. It is not merely a tool for cutting; it has a far more subtle character. It has been identified with the warrior for millennia and has been imbued with the notions of warriorship. The key to wielding the sword is to enter into combat with the feeling of Muto Dori. As it should be, the focus is on the taijutsu. The body and sword move as one.Combat is always kyojutsu, truth and falsehood; therefore, the true sword is that of the mind and spirit. Ultimately, the Word of God is the secret sword, cutting not merely bone and marrow but soul and spirit.
"Succeeding in this [muto dori], the mysteries of the secret sword (hiken) will be revealed, and no matter what weapon you hold, your heart and your taijutsu will dance skillfully in the void (koku)." Masaaki Hatsumi, Japanese Sword Fighting






