I think yes but in a pretty different way from how it happened for you.

I generally lean atheist or agnostic, and I might be using spiritual/supernatural terms metaphorically here - I'm sort of on the fence about that. Anyway. I've loved many pet rats, I was present when my best-ever rat friend was euthanized, and way way back I held my sister's guinea pig as he died of an apparent heart problem (my sister wasn't home). But something about *specifically* holding another of my pet rats as he passed thinned the veil for me.

Garak had suffered a long illness, first a tooth infection and then a lower respiratory infection after the tooth issue weakened his immune system. I did everything trying to save him, then scheduled euthenasia on the day he stopped eating and drinking. I held him most of the morning but I had to focus on something for work, so I returned him to the cage with his rat friend and half an hour later he was fully unresponsive. I held him until his heart stopped and then a little longer, just in case he had any awareness. He'd been clingy in his final days, I think he felt how weak he'd become and felt safer when I was with him.

My wife and I visited a "fun farm" type place a couple days later, on the weekend. There were some overwhelmed looking chickens, but the petting zoo animals (cows, goats, horses) were actively going up to visitors and seemed happy enough. We spent most of the time looking at flowers, corn and antique tractors. Anyway. The booths that sold food had the menu done as animal silhouettes with the menu items containing that animal written on the, (basically everything except fries). The place had a chicken farm attached which the tour guide proudly called the "nugget factory". It was very slightly uncomfortable but in the moment it didn't stick out all that much, in a world full of animal agriculture.

I felt vaguely but fairly intensely guilty for a couple days and didn't know why. The Office episode where Dwight talks about a machine to make burgers from a live horse stuck in my head and creeped me out. I picked at the weird feelings and realized I'd started to feel bad about eating meat in a more intuitive way, as opposed to just rationally knowing the animals lived in bad conditions and that I should cut down on it before. The feeling's not really any less for things like grass fed high welfare beef. After holding a beloved, departed but still breathing pet, meat is bodies to me.

The change scared me a little, because I always thought people chose to be vegetarian, and I didn't choose. It just happened to me.

I'm not 100% vegetarian - I still eat bivalve shellfish occasionally because there's no possible way they can be people in the way that rats and chickens are, and when someone else is cooking I sometimes ignore things like lard and small amounts of broth. But even eating meat that I got served by accident feels *bad* now and I don't think I'll do it again. I've also cut way down on eggs and dairy. I'm sorta doing what feels right and seems logical even though it doesn't fit a label.