The lines also remind me of the final stanza of Philip Larkin's "Cut Grass"(another of those un-Larkinesque Larkin poems that often go unnoticed):
White lilac bowed,
Lost lanes of Queen Anne's lace,
And that high-builded cloud
Moving at summer's pace.
Philip Larkin, High Windows (Faber and Faber 1974).
And, finally, the clouds of another visionary, Ivor Gurney:
There Was Such Beauty
There was such beauty in the dappled valley
As hurt the sight, as stabbed the heart to tears.
The gathered loveliness of all the years
Hovered thereover, it seemed, eternally
Set for men's joy. Town, tower, trees, river
Under a royal azure sky for ever
Up-piled with snowy towering bulks of cloud:
A herald-day of spring more wonderful
Than her true own. Trumpets cried aloud
In sky, earth, blood; no beast, no clod so dull
But the power felt of the day, and of the giver
Was glad for life, humble at once and proud.
Kyrie Eleison, and Gloria,
Credo, Jubilate, Magnificat:
The whole world gathered strength to praise the day.
P. J. Kavanagh (editor), Collected Poems of Ivor Gurney (Oxford University Press 1982).
A non-cloud-related note: I may be guilty of oversimplification, but I think that "as stabbed the heart to tears" gets close to the emotional core of a great deal of Gurney's poetry. But I hasten to add that I am no expert on the matter. It's just a thought.