Therefore, the hondo has a complicated structure, with a 'nainaijin' (the innermost sanctuary where the principal object stands) within the 'naijin' (inner sanctuary), and as a result, the nainaijin acts as a big 'zushi' (a cupboard-like shrine with double doors used to store images of Buddha, sutras, etc).
そのため、本堂は内陣の中にさらに内々陣（本尊を安置）がある複雑な構成となっており、内々陣は巨大な厨子の役目をしている。