Having been tipped-off that the 2007 Halldor Laxness biography by Halldor Gudmundsson had been issued in paperback and Kindle; I bought myself a copy to re-read.
Although I did not much enjoy the biography, because Laxness was such a "high psychoticism" kind of genius as to make uncomfortable company with prolonged contact, it has set me to re-read (for the fourth or fifth times) my two favourite among his novels: The Fish Can Sing, and Christianity At Glacier (re-issued as Under the Glacier).
(Both superbly translated by Magnus Magnusson - a name very well known to all Brits aged above fifty; for his role as quizmaster of TV "Mastermind".)
The Fish Can Sing of 1957 is better literature, indeed a near-perfect novel; while Christianity at Glacier rather falls-apart structurally, as Laxness's mental powers began to wane; but both are well worth reading as imbued with "spirituality".
In TFCS the spirituality is Taoism - in a Western manifestation, yet sincere and pervasive; and made tragic by awareness of its unsustainability beyond childhood.
In CAG, it is "Christian" - or rather an examination of the Christian, an exploration or striving-towards a new/different kind of Christian spirituality.
(Laxness was born into the tepid Lutheranism of Iceland in 1902, for a few years became a very keen Roman Catholic (considering ordination); before discarding all this for USSR-focused Marxist materialism in the middle 20th century - then returning to a stronger and stronger spiritual focus from the later 1950s - re-assuming Roman Catholic practice in his last years.)
By the time of CAG, Laxness clearly rejected the symbolism and ritual of institutional Christianity; and seemed to desire a kind of Taoistic Christianity in which the religion was absorbed-into everyday life, without being made explicit in public discourse.
I think this is what he wanted; although he didn't achieve it - perhaps due to confusion over what Christianity ultimately is (i.e. not-of-this-world and about post-mortal resurrected life).
More exactly; what Laxness wanted from Taoism does correspond pretty-closely to Barfield's Original Participation, the primal spirituality of young children and the earliest cultures of nomadic tribal people - which is, in a sense, naturally Christian - in that such people will (when available) choose salvation quite spontaneously and unconsciously.
But Taoism is the attempt to make a symbolism or "model" out of Original Participation - which must fail because anyone self-conscious enough "be a Taoist" is too self-conscious actually to be a Taoist! The spiritual adolescent cannot choose to think as a young child, or hunter-gatherer.
What might a Taoist Christianity be like? Well - it is a type of Romantic Christianity. One in which Christianity is not spoken of; and in which there is not participation in Christian-themed public discourse.
(When compelled to converse on spiritual matters, the "Taoist" becomes poetic, enigmatic, obtuse, surreal, deliberately misleading...)
Starting point: Modern Man is in a situation of existential freedom, because we need consciously to choose that which was once spontaneous.
Furthermore, this conscious freedom is primarily in the realm of thinking, so that the hardly-thinking spontaneity of the young child or tribesman is replaced by a freely-chosen and explicitly-thought mode of being.
So an actual Taoist Christian (rather than the Christianised Taoism that Laxness often reverts-into) would be lived in awareness of the living, created world of many Beings; a world of Good and evil and entropy; and a world in which we are called-upon consciously to discern and affiliate with the side of Good/ God/ Divine Creation.
We would not be striving for Taoist immersion in the present moment, or for Taoist indifference to values and choices; because a Christian recognizes that this life is transitional and temporary; and properly aimed-at Resurrected eternal Heavenly life.
But there is a possibly Taoist flavour to the idea of recognizing and appreciating our actual, living experiences - here-and-now - as opportunities for spiritual learning - rather than this-worldly betterment.
Maybe something-like this was where Laxness was pointing in Christianity At Glacier? Maybe that accounts for the special flavour, quality, and appeal I get from the book?