I went for the first time today on what my friend Andrew King from Highbury calls a pastoral friendship walk. (I think there have been two before this one). We met at Hampstead Heath Station, walked across the Heath in glorious sunshine, stopping for refreshments at Kenwood House, and ending up at Gospel Oak. There were about seven of us. The idea is that sedentary men who can easily be loners get out in the fresh air, and do a little exercise and talk to each other. It is not aiming incredibly high then but you would be surprised how revolutionary sometimes the simplest ideas can be. I certainly enjoyed the walk (which I try to do anyway) and the chat. Thanks Andrew for getting us organised.
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.