As the social structure changed by introducing the system of the ritsuryo legal codes, local ruling families, who were simply the head of a community, became like feudal-lords with private property, and the conventional Jingi belief supported the religious service by a community was in a deadlock.
律令制の導入により社会構造が変化し、豪族らが単なる共同体の首長から私的所有地を持つ領主的な性格を持つようになるに伴い、共同体による祭祀に支えられた従来の神祇信仰は行き詰まりを見せた。