Exodus 29

As with the preceding chapters, I am not getting much out of this. The idea of a real blood sacrifice being in any way necessary for worship of God is pretty far removed from our modern culture, and the requirements of what to do with various bits of the animals is especially confusing to me. Why do some parts need to be burned on the altar, some eaten, and some burned outside the camp? What does it all represent? I had always assumed it was the sacrificing of a live creature, especially one that had a monetary value in society, that was important - but there seems to be a lot more to it than that.