All of this is the Holy Spirit's way of saying that no one could enter the most holy place while the tent was still the place of worship. This also has a meaning for today. It shows that we cannot make our consciences clear by offering gifts and sacrifices. These rules are merely about such things as eating and drinking and ceremonies for washing ourselves. And rules about physical things will last only until the time comes to change them for something better.
Christ came as the high priest of the good things that are now here. He also went into a much better tent that wasn't made by humans and that doesn't belong to this world. Then Christ went once for all into the most holy place and freed us from sin forever. He did this by offering his own blood instead of the blood of goats and bulls.
According to the Law of Moses, those people who become unclean are not fit to worship God. Yet they will be considered clean, if they are sprinkled with the blood of goats and bulls and with the ashes of a sacrificed calf. But Christ was sinless, and he offered himself as an eternal and spiritual sacrifice to God. That's why his blood is much more powerful and makes our consciences clear. Now we can serve the living God and no longer do things that lead to death.
Christ died to rescue those who had sinned and broken the old agreement. Now he brings his chosen ones a new agreement with its guarantee of God's eternal blessings! In fact, making an agreement of this kind is like writing a will. This is because the one who makes the will must die before it is of any use. In other words, a will doesn't go into effect as long as the one who made it is still alive.
Blood was also used to put the first agreement into effect. Moses told the people all that the Law said they must do. Then he used red wool and a hyssop plant to sprinkle the people and the book of the Law with the blood of bulls and goats and with water. He told the people, "With this blood God makes his agreement with you." Moses also sprinkled blood on the tent and on everything else that was used in worship. The Law says that almost everything must be sprinkled with blood, and no sins can be forgiven unless blood is offered.