Read the excerpt from the odyssey.
then,
his chores being all dispatched, he caught
another brace of men to make his breakfast,
and whisked away his great door slab
to let his sheep go through—but he, behind,
reset the stone as one would cap a quiver.
what two things are being compared in this epic simile?
the door slab to the cyclops’ sheep
the stone to a quiver
a brace of men to breakfast
the cyclops’ chores to the men

The two things which are being compared in the above epic simile is:

the stone to a quiver

The use of the epic simile in the above excerpt helps the readers to understand that the enormous stone was comfortably and routinely moved by Cyclopes. The Cyclopes are giant and huge creatures who were blessed by the Gods for food for their living. They don't want any visitors to come to their place. When Cyclops noticed that Odysseus and his men had arrived at his land, he captured them in his cave and treated them in the most inhospitable manner. He was very huge and trapped Odysseus and his people in the cave with the help of a huge stone which only he was capable of moving it.