Another 'spiritual image':
Then they brought him his blaxon that was of brilliant gules
with the pentangle depicted in pure hue of gold.
By the baldric he caught it and about his neck cast it:
right well and worthily it went with the knight.
And why the pentangle is proper to that prince so noble
I intend now to tell you, though it may tarry my story.
It is a sign that Solomon once set on a time
to betoken Troth, as it is entitled to do;
for its is a figure that in it five points holdeth,
and each line overlaps and is linked with another,
and every way it is endless; and the English, I hear,
everywhere name it the Endless Knot.
So it suitss well this knight and his unsullied arms;
for ever faithful in five points, and five times under each,
Gawain as good was acknowledged and as gold refinéd,
devoid of every vie and with virtues adorned.
the pentangle painted new
he on shield and coat did wear,
as one of word most true
and knight of bearing fair.
First faultless was he found in his five senses,
and enxt in his five fingers he failed at no time,
and firmly on the Five Wounds all his faith was set
that Christ received on the cross, as the Creeed tells us;
and wherever teh brave man into battle was come,
on this beyond all things was his earnest thought:
that ever from the Five Joys all his avlour he gained
that to Heaven's courteous Queen once came from her Child.
For which cause the knight had in comely wise
on the inner side of his shield her image depainted,
that when he cast his eyes thither his courage never failed.
The fifth five that was used, as I find, by this knight
was free-giving and friendliness first before all,
and chastity and chivalry ever changeless and straight,
and piety surpassing all points: these perfect five
were hasped upon him harder than on any man else.
Now these five series, in sooth, were fastened on this knight,
and each was knit with another and had no ending,
but were fixed at five points that failed not at all,
coincided in no line nor sundered either,
not ending in any angle anywyere, as I discover,
wherever the process was put in play or passed to an end.
Therefore on his shining shield was shaped now this knot,
royally with red gules upon red gold set:
this is the pure pentangle as people of learning
Now Gawain in brave array
his lance at last hath caught.
He gave them all good day
for evermore as he thought.
Sir Gawain and the Green Knight, J. R. R. Tolkien, tr. (George Allen & Unwin: 1990) 35-36.