Well, here is a theory in which I studied in History. When you die in Buddhism or Hinduism and you have eaten meat all your life, you will be reborn as the animal you ate and your last thoughts before you die are of those animals. Then, during your afterlife, you will feel the torture and suffering of the animals. Correct me if I'm wrong. Another theory is represented in a movie called Fluke about a Bay retriever doggie. You shoudl watch it.
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