The Roots of Ninjutsu
Although there has been an evolution of Ninjutsu as a life philosophy over the centuries, the fundamental principles have remained virtually unchanged.
Ninja families were great observers of nature. They felt a close connection to the Earth, similar to the Native Americans, and their lifestyle was one that lived according to the laws of Nature, not against it. Ninja were also very spiritual people, and their beliefs became an integral part of Ninjutsu.