Without the shedding of blood there is no remission of sin. The offerings show us how the Israelite would communicate with God. He would choose his offering specifically to say that. All the offerings see there fulfillment in Jesus. When I want to say any of those things to God, I recognize that they have been said for me once and for all in Christ. All the conversations they had with God went through the offerings. When the blood was shed, it was as if the blood was speaking. The idea was that where ever the blood has gone, I now may go. Where ever there was blood, man had a legal right to stand in God's presence. Paul says "Let us come boldly to the throne of grace".
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