Also, the timbers are thoroughly weathered by the smoke from the irori fireplace (open hearth) and their colour changes and becomes enriched as time goes by, and the effect of the light where the light from outside becomes weakened when entering the room is a familiar aesthetic of Japanese culture, as typified in the work "Inei Raisan (In Praise of Shadows)" by Junichiro TANIZAKI.
また、囲炉裏の煙でじっくり燻された木材は、時を経るごとに味のある色に変化していき、その経年変化と、部屋の奥に入るにしたがって、外光が減衰してゆく光の演出こそが、谷崎潤一郎が「陰影礼賛」に記したように、日本人の美学に馴染むものであった。