sentences:  Rappaport concluded that ritual, "...helps to maintain an undegraded environment, limits fighting to frequencies which do not endanger the existence of regional population, adjusts man-land ratios, facilitates trade, distributes local surpluses of pig throughout the regional population in the form of pork, and assures people of high quality protein when they are most in need of it".Similarly, J. Stephen Lansing traced how the intricate calendar of Hindu Balinese rituals served to regulate the vast irrigation systems of Bali, ensuring the optimum distribution of water over the system while limiting disputes.While most Functionalists sought to link ritual to the maintenance of social order, South African functionalist anthropologist Max Gluckman coined the phrase "rituals of rebellion" to describe a type of ritual in which the accepted social order was symbolically turned on its head.