Kenshin was fed up with internal struggles among vassals, estrangements of Kokujin formation and frustrated with stale mate battles with Shingen, so he frequently confined himself at Bishamonten-do Hall to gradually enter the world of religious beliefs.
家臣団の内部抗争・国人層の離反・信玄との戦いが膠着状態に陥りつつある状況に嫌気がさした謙信は毘沙門天堂に篭ることが多くなり、次第に信仰の世界に入っていくようになった。