In the Odyssey, why did circe turn Odysseus's crew into pigs?

In the Odyssey,  Circe turn Odysseus's crew into pigs is explained below in details.

Explanation:

His men realized that before him and were converted to pigs for their problem. He was tasked with convincing Circe to transform his men back to their starting placement and as for why she did it, there was no specific purpose for her movements and it was intended to be chalked off as the presence of an evil witch.

you didnt put   question but this passage would be a origin story made to explain life and death and who controls each one

is there a passage to this question if so plz take a picture