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.
Childhood Songs 5 Dashing White Sergeant
Now the fiddler's ready, let us all begin!
So step it out and step it in.
To the merry music of the violin
We'll dance the hours away.
Katey and Peggy and Patsy and Coll,
Callum and Peter and Flora and Moll,
Dance, Dance, Dance, Dance,
Dance the hours away together,
Dance till dawn be in the sky;
What care you and what care I?
Hearts a-beating, spirits high,
We'll dance, dance, dance.