The curtain represents Jesus' flesh. Aaron did not spatter blood before the curtain once, he did it 7 times:
6 And the priest must dip his finger in the blood and spatter some of the blood seven times before Jehovah in front of the curtain of the holy place (Leviticus 4).
17 And the priest must dip his finger into some of the blood and spatter it seven times before Jehovah in front of the curtain (Leviticus 4).
51 And he must take the cedarwood and the hyssop and the coccus scarlet material and the live bird and dip them in the blood of the bird that was killed and in the running water, and he must spatter it toward the house seven times (Leviticus 14).
14 And he must take some of the bull's blood and spatter it with his finger in front of the cover on the east side, and he will spatter some of the blood with his finger seven times before the cover (Leviticus 16).
19 He must also spatter some of the blood upon it with his finger seven times and cleanse it and sanctify it from the uncleannesses of the sons of Israel (Leviticus 16).
4 Then Eleazar the priest must take some of its blood with his finger and spatter some of its blood straight toward the front of the tent of meeting seven times (Numbers 19).
All the above is bearing witness to a period of 7x of uncleanness prior to Jesus' death of the cover hiding the gifts of the spirit. These are witnesses therefore to the 7x of the Alienation Times.
The blood being spattered 7x before the curtain which was Jesus' flesh also points to 7 other validation sacrifices being made before the sacrifice of the flesh Christ in validation of he 1AC - see Intro28.