《晋书·志·第十九章》
外貌言语视觉听觉，以心为主，四者都迷失，那么就会昏昧不明，所以其灾祸是天气昏暗。
貌言视听，以心为主，四进皆失，则区无识，故其咎也。
The appearance, speech, vision and hearing are all based on the heart, and if all four are lost, then it will be confused and unclear, so its disaster is dark weather.