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 culturehere. 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.
Princess Anne Visit
Since September I have been attending classes once a week at the Working Men's College near King's Cross. I wasn't there but this week Princess Anne was present to hand out medals and there is a full report here.