Aaron, the high priest of the old covenant, had to have a mitre on his head before entering the Holy of Holies.
Exodus 28:36-38 “And thou shall make a plate of pure gold engrave upon it like the engravings of a signet Holiness to Yahweh. and thou shall put it on a blue lace that it may be upon the mitre; upon the forefront of the mitre it shall be. And it shall be upon Aaron's forehead that Aaron may bear the iniquity of the holy things, which the children of Israel shall hallow and all their holy gifts and it shall be always upon his forehead that they may be accepted before Yahweh.”
He also had to wash his flesh in water and put on holy garments.
Lev 16:4 “He shall put on the holy linen coat, and he shall have the linen britches upon his flesh, and shall be girded with a linen girdle, and with the linen mitre shall he be attired: these are holy garments; therefore shall he wash his flesh in water and so put them on.”
Everything (the tabernacle, holy garments, etc.) were done according to a detailed pattern given to Moses from our Creator.
Ex 25:9 “According to all that I show thee after the pattern of the tabernacle, and the pattern of all the instruments thereof, even so shall you make it.”
This physical tabernacle and high priest are merely a copy of the true Holy of Holies in heaven.
Heb 9:24 “For YahwehShua is not entered into the holy places made with hands which are the figures of the true but into heaven itself now to appear in the presence of Yahweh the Father for us.”
The old physical covenant could only purify or protect the flesh, whereas the new purifies the mind. As a sister once told me “I don't want to hear about the physical I want to hear about the spiritual.”
Heb 9:13-14 “For if the blood of bulls and of goats, and the ashes of a heifer sprinkling the unclean, sanctify to the purifying of the flesh (body): How much more shall the blood of Messiah who through the eternal spirit offered himself up without spot to Yahweh to purge your conscience (mind) from dead works to serve the living YahwehShua.”
Ex 28:34-35 “A golden bell and a pomegranate, a golden bell and a pomegranate, upon the hem of the robe round about. And it shall be upon Aaron to minister: and his sound shall be heard when he goes into the holy place before Yahweh (Son) and when he comes out that he die not.”
The old covenant Israelites could only know that Aaron was alive while in the physical Holy of Holies because of the sound of the bell that he wore. The Israelites could not enter in themselves. However, in the new covenant we have access to the true holy of holies of the Father in heaven through his Son.
Heb 10:20 “By a new and living way which he has consecrated for us, through the veil, that is to say his flesh.”
The scriptures say we must be baptized in the name (not names) of the Father and the Son.
Math 28:19 “Go you therefore and teach all nations baptizing them in the name of the Father and of the Son” (Some scholars say Holy spirit, but that was not in the original scriptures).
The name YahwehShua contains the name of Father Yahweh and the resurrected Messiah, his son YahwehShua. You will receive a down payment of the spirit of YahwehShua once you are baptized and have hands laid on you by an elder.
If you want ultimate access to the throne room of the Father Yahweh through his son YahwehShua, then you must have the right name on your forehead (mind). Aaron, a physical priest, had the name Yahweh on his mitre, i.e, on his forehead as a figure of the future having YahwehShua on your mind! There is no ultimate access without it. What's on your mitre?