It is only exalted thinking that allows one to perform the sacrifices required to fulfill the commanded obligations of each feast. A focused mind, and purposed repentance unto renewal.

vs.18 — Then he shall come out to he altar (reverence in thoughts) that is before Yahweh, and make atonement (canceling any irreverent thoughts) for it. He shall take some of the bull’s blood (conscious life force that has been shed) and some of the goats (former “hardness” of mind) blood (now shed), and put it on the horns (“projecting, push”; compulsion within) of the altar (“slaughtering” place for confession).

Repentance has been given a specific place within, to be carried “out”. It is to be a sanctified place, a place of deep inner realization. It would be a known place for those who keep the commanded feasts; “My place of repentance”, the altar within.

vs.19 — He shall sprinkle (bring the required atonement therefore “satisfying” the commands) some of the blood on it [altar] with his fingers (recognition) seven times; to cleanse it, and to consecrate (consciously “set apart”) and sanctify (make sacred) – it from the uncleanness of the children (builders) of Israyl (thoughts “ruled” by and for Yahweh).
7 times! “Yahweh I realize that much of what I bring before You, so many of my thoughts, are impure and display a gross misunderstanding of Your Laws, precepts, judgments and statutes. So much of it, the very same authorized fire that killed Aaron’s two sons. Forgive me for the uncleanliness that resides even in my confessions Father, please.”

vs.20 — When Aaron has finished making atonement for the Most Holy Place (the “sacred” place in the mind, where Yahweh reveals the greatest portion of Himself), the Tent of Meeting (the place where Yahweh expects “clarity” in thought and emotion in order to receive forgiveness for daily transgression), and the altar (the bowed mind), he shall bring forward the live (consciously active) goat (hardness).

Harness repented of, hardness offered up as a sign of desire for perfection, the inner knowledge that until ascension, hardness remains.