21 And when the entrails and the legs were washed with water, Moses burned the whole ram on the altar, as a burnt offering, a pleasing odor, an offering by fire to YHVH, as YHVH commanded Moses.
22 Then he presented the other ram, the ram of ordination; and Aaron and his sons laid their hands on the head of the ram.
23 And Moses killed it, and took some of its blood and put it on the tip of Aaron's right ear and on the thumb of his right hand and on the great toe of his right foot.
24 And Aaron's sons were brought, and Moses put some of the blood on the tips of their right ears and on the thumbs of their right hands and on the great toes of their right feet; and Moses threw the blood upon the altar round about.
25 Then he took the fat, and the fat tail, and all the fat that was on the entrails, and the appendage of the liver, and the two kidneys with their fat, and the right thigh;
26 and out of the basket of unleavened bread which was before YHVH he took one unleavened cake, and one cake of bread with oil, and one wafer, and placed them on the fat and on the right thigh;
27 and he put all these in the hands of Aaron and in the hands of his sons, and waved them as a wave offering before YHVH.
28 Then Moses took them from their hands, and burned them on the altar with the burnt offering, as an ordination offering, a pleasing odor, an offering by fire to YHVH.
29 And Moses took the breast, and waved it for a wave offering before YHVH; it was Moses' portion of the ram of ordination, as YHVH commanded Moses.
30 Then Moses took some of the anointing oil and of the blood which was on the altar, and sprinkled it upon Aaron and his garments, and also upon his sons and his sons' garments; so he consecrated Aaron and his garments, and his sons and his sons' garments with him.
31 And Moses said to Aaron and his sons, "Boil the flesh at the door of the tent of meeting, and there eat it and the bread that is in the basket of ordination offerings, as I commanded, saying, 'Aaron and his sons shall eat it';
32 and what remains of the flesh and the bread you shall burn with fire.
33 And you shall not go out from the door of the tent of meeting for seven days, until the days of your ordination are completed, for it will take seven days to ordain you.
34 As has been done today, YHVH has commanded to be done to make atonement for you.
35 At the door of the tent of meeting you shall remain day and night for seven days, performing what YHVH has charged, lest you die; for so I am commanded."
36 And Aaron and his sons did all the things which YHVH commanded by Moses.
In essence, all the sacrifices are made for Aaron, since he represents the spiritual side of us or our Soul. They remained at the tabernacle or in this spiritual level of consciousness for seven days, again the completion of a spiritual process.