In addition, the number of years after pledging oneself to observe the Buddhist commandments, which was called horo or kairo, resulted in producing the seniority system, and this was regarded as a powerful 'weapon' to move up the ladder, pursuing a career in the temple.
また、受戒してからの年数――つまり法臘（戒臘とも）は年功序列制の素となり、寺院内で身を立て、出世していくための「武器」として重視されるようになる。