When something triggers into the scenery with no change, light and color change.
When Japanese were seend the change of the time and space, we felt “ヲカシ:Wokashi(doubt；strangeness)” and “アワレ:Aware(have mercy on)”. We refer to them as “Utsurohi.
The Japanese sense of “雪月花:Setsugekka (snow, moon, and flowers)” and “花鳥風月:Kacho-fu-getsu (beauties of nature)” representing Japan is coming from “ウツロイ:Utsurohi”.
Japanese are linking these natural phenomena and the world of people.