Ravi Shankar has died at the age of 92. Perhaps he was most famous as George Harrison's sitar teacher but he had his own career in the west and is also the father of Norah Jones. I remember buying Transmigration Macabre in my teens or early twenties. This track has always been my favourite. It is truly beautiful. As for metempsychosis, as Mr Shankar now knows, it is not so.
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.