Budō is a Japanese term describing modern Japanese martial arts. Budō, which means "the martial ways", has its origins in bushidō, "the way of the warrior". The budō arts include aikido, judo, jūkendō, Kendo, Kyūdō, naginata, shorinji kempo and sumo. In battle, budō teaches defense with the ideas of nonviolence and spiritual enlightenment. Originally designed for warfare, budō became a way of self-defense. From his book "Meditations on Violence", Rory Miller wrote: