Their purpose is to refine and practice their spirituality and ninja arts and take care of the needy. They also work amicably towards the benefit of the Tokugawa family in a manner reminiscent of Konohagakure's relationship to the Fire Country Daimyō. They also function as an orphanage and school. The monks make a point to ensure that any child without family and clan can have a place with them, and are entirely self-sufficient but for occasional business with the Tokugawa family. This is necessary due to their extreme isolation. They produce their own food, smith their own weapons, armor, and tools, build and refurbish temple buildings and areas themselves, among other activities.