The meaning may not be clear because it relates to the storyline of the novel, so I have added a synopsis.
A brief synopsis:
The child is destined to become a member of the Knights of the Round Table in King Arthur’s Court. His mother, a friend of Merlin’s (who prophesies of the child's future to her), falls ill due to complications of the child’s birth and sadly dies shortly thereafter. The father, a great and loyal knight, is forced to send the boy to the Abbey, because he must go off to war in service to his King. He dies in battle saving the King’s life. The Knight’s squire, who loves him very much, loses his right leg in the same battle as he comes to his knight’s aid. This squire becomes the guardian for the child and raises him to mid-teenage years before his life too is cut short in his service to the boy.
by Paul H. Kogel
Sweet is the mother of the pure of heart
And the womb from which she bore him.
The monarch great and meekest son,
Are both within her bosom one.
Upon the child, the moppet low,
The passion of her breast does heave,
For ne’er his hungry mouth shall feed,
And ne’er his head shall sleep.
Yet death be not her grievance blame,
For lore was built on less.
And by her dearest wizard’s fame,
Omened his augured change,
“His fortune lies in greater still,
Than times as yet have claimed.
Within the silver armored shield,
Reflects the hope of fame.”
Dearest is the father’s care,
When heart alone does hold.
The child of loin be lost to time,
Yet only digs be known.
For thunder cries its beckoned call,
And sword spilled blood upon the seal,
Yet peace within the Abbey’s Hall,
Makes blessed the angel’s hallowed steel.
For peace was not a hand to hold,
Nor ‘twas paternal bond,
But ‘twas the twilight’s armor pierced,
To mold this mortal son.
The hopes and dreams of days to come,
Were chased upon the morrow,
Yet best-laid plans can spoil the seed,
And bring a father’s sorrow.
Loyal is a friend, who keeps,
When lines of blood doth flee,
When even severed limb won’t bar,
But binds him to relieve.
To parent be and friend indeed,
Though life wouldst not be long,
Foundations built on level ground,
Shall raise a tower strong.
The heavens ne’er so stoic be,
For friends on earth so fair,
But with a sign from Gabriel’s horn,
Sends gifts beyond compare.
For stars are home to ancient lore,
But not for earthly gain,
Yet loyal hearts can draw them near,
And win a champion’s fame.