Pareidolia is a term that refers to the psychological phenomenon in which the mind responds to a stimulus (an image or a sound) by perceiving a familiar pattern where none exists. Common examples are perceived images of animals, faces, or objects in cloud formations, the man in the moon, the moon rabbit, hidden messages within recorded music played in reverse or at higher- or lower-than-normal speeds, and hearing indistinct voices in random noise such as that produced by air conditioners or fans (or your printer in m case. Here is an example of something in my street that I have walked past hundreds of times and that reminds me of an image I would have seen as a child (Brian Jones of the Rolling Stones and his Vox Phantom Mark III guitar.
Bonhoeffer uses a similar phrase 'worldly Christianity'. It's J Gresham Machen that I want to line up most closely with. See his Christianity and culture here. Having done commentaries on Proverbs (Heavenly Wisdom) and Song of Songs (Heavenly Love), a matching title for Ecclesiastes would be Heavenly Worldliness. For my stance on worldliness, see 3 posts here.