It may built along with a hokke-do hall which is a type of Buddhist hall built to perform the Hokke-zanmai (Dharma-Lotus Samadhi) exercise which is an important exercise of the Tendai sect along with the Jogyo zanmai.
常行三昧とともに天台宗の重要な行とされる法華三昧を修するための堂である法華堂とともに建てられることある。