The simile adds to the passage by providing:
- an image of helplessness - The comparison to "squirming puppies" emphasizes the vulnerability and powerlessness of Odysseus' men in the face of the Cyclops.
- a comparison between the men and innocent animals - This simile highlights the innocence and defenselessness of Odysseus' men, likening them to unsuspecting and innocent creatures rather than warriors.
These elements contribute to the overall tone of danger and despair in the encounter with the Cyclops.