It is a beautiful room, with open timber roof, windows partly of stained glass, and walls tapestried and panelled.
The lower order contains the flat pilastered portal with two panelled spaces on each side.
Opposite the entrance within is a hall with recesses for coffins and a richly panelled ceiling; underneath is an immense vault.
The pillars, architraves, ceilings, panels, and almost every available part of the structure, are covered with arabesques and sculptured figures of dragons, lions, tigers, birds, flowers, and even pictorial compositions with landscapes and figures, deeply carved in solid or open workthe wood sometimes plain, sometimes overlaid with pigment and gilding, as in the panelled ceiling of the chapel of Iyeyasu in Tokyo.
On the flat panelled ceiling of the nave are the heraldic shields of the princes, noblemen and bishops who shared in its erection, and the great west window contains modern painted glass of excellent colour and design.