Leviticus our friend mentioned is thousands of years old and reflects a very different age and a very different capacity.
Who doesn't like the smell of a lamb roast, roast beef, poultry with fresh bread? In a leather clad tent with incense, scented candles and oil, acacia wood with lots of gold and precious gems. It would be such a divine atmosphere. The sin that brought them there would be a bit dubious. To sacrifice the animal. Maybe they sinned so they could have special occasions like that?
The only difference these days is there is no reverence for the animal that we tuck into that the breath of life was snuffed out of.
