"From mirrored truth the likeness of the True"

A post at First Things sent me trying to find a Tolkien poem I don't remember ever having read. Several references say that Tolkien's poem Mythopoeia was written in response to C.S. Lewis's statement that myths were "lies breathed through silver." Tolkien argues that myths are "sub-creation," not lies. The poem is collected in an edition of Tolkien's Tree and Leaf. From Mythopoeia:

The heart of man is not compound of lies,
but draws some wisdom from the only Wise,
and still recalls him. Though now long estranged,
man is not wholly lost nor wholly changed.
Dis-graced he may be, yet is not dethroned,
and keeps the rags of lordship one he owned,
his world-dominion by creative act:
not his to worship the great Artefact.
man, sub-creator, the refracted light
through whom is splintered from a single White
to many hues, and endlessly combined
in living shapes that move from mind to mind.
Though all the crannies of the world we filled
with elves and goblins, though we dared to build
gods and their houses out of dark and light,
and sow the seed of dragons, 'twas our right
(used or misused). The right has not decayed.
We make still by the law in which were made. ....

Blessed are the legend-makers with their rhyme
of things not found within recorded time.
It is not they that have forgot the Night,
or bid us flee to organized delight,
in lotus-isles of economic bliss
forswearing souls to gain a Circe-kiss
(and counterfeit at that, machine-produced,
bogus seduction of the twice-seduced). ....

I will not walk with your progressive apes,
erect and sapient. Before them gapes
the dark abyss to which their progress tends —
if by God's mercy progress ever ends,
and does not ceaselessly revolve the same
unfruitful course with changing of a name.
I will not treat your dusty path and flat,
denoting this and that by this and chat,
your world immutable wherein no part
the little maker has with maker's art.
I bow not yet before the Iron Crown,
nor cast my own small golden sceptre down. ....

In Paradise perchance the eye may stray
from gazing upon everlasting Day
to see the day-illumined, and renew
from mirrored truth the likeness of the True
Then looking on the Blessed Land 'twill see
that all is as it is, and yet made free:
Salvation changes not, nor yet destroys,
garden nor gardener, children nor their toys.
Evil it will not see, for evil lies
not in God's picture but in crooked eyes,
not in the source but in malicious choice,
and not in sound but in the tuneless voice. ....