A number of major wulin sects such as Shaolin, Cheun Jen Sect, Mo Dong Sect, etc., controlled quite a large amount of land. This land included not only the sects' housing, study, ceremonial, and training facilities, but also fields where food crops could be grown (by sect members). Were most of the martial arts sects self-sufficient in terms of producing food to feed their members, or did they often need to supplement what they grew on their land with food supplies bought from wholesalers in nearby cities? If the sects grew a surplus crop, would they sell it to the public for extra money?