Answer:
It helped to make the descriptions stick more to the reader
Step-by-step explanation:
Alliteration refers to the repetition of the initial consonant letters in a string of words. The author's use of alliterations in the poem Beowulf helped to impress the depth of the damage done by Beowulf to Grendel on the minds of the readers. Below is an excerpt of the description:
A body-wound suffered
The direful demon, damage incurable
Was seen on his shoulder, his sinews were shivered,
His body did burst.
The repetition of the same letters impresses th idea on the mind of the reader. Indeed the damage done to Grendel as great for even his sinews were visibly wounded and his body suffered some tears too.