Joy eludes the Archbishop (Lewisian joy, that is)

Rowan Williams, a former Archbishop of Canterbury who's written a book about C.S. Lewis, seems, on the basis of this interview, to appreciate CSL for what I regard as the right reasons: his understanding of human frailty based on personal humility, his capacious and sympathetic grasp of literature, and, above all, his imaginative evocation of spiritual desire and experience.  I was pleasantly surprised, too (probably shouldn't have been; I'm not up on current theological currents) that he pretty much dismisses Lewis's agitprop-thin "rational" arguments for Christianity's literal truth.

All that said, Williams seems to misunderstand the keystone of Lewis's imaginative theology, the experience Lewis called "joy." Williams conflates that joy with more prosaic spiritual phenomena -- the psychomachia of everyday life --  that Lewis also evokes.  

Here's Williams' take on Lewisian joy: