Evening’s Empire by Craig Kosloksky is a non-fiction book about “mankind’s colonization of the night” by various lighting technologies. Via a review, a snippet from the book:
“…the power of midnight, solitary and profound, to strip away the vanity of the day.”
I like that; it captures well why things seem so different at night. The literal noise of the daytime world, not to mention the social cacophony, prevent (or certainly discourage) one from thinking about profound matters. Also, the daytime world has the frenetic pace of a competitive species that is mortal and subject to aging. Things must be done fasfastfast! Night has an entirely different pace, no pace at all, really. In the dark and quiet, profound thoughts set their own pace, and their own pace is slower, much more measured. The darkness removes the distraction entailed in observing things around you. It lets you retreat into yourself, into your own thoughts.
Quotidian things distract us from profound things. If there is a devil, he is a creature of the day, not of the night.