Since this Parasha was dictated to Moshe after the deaths of Aharon´s sons, it is named Acharei-Mot, “after the deaths.” However, the Torah interrupted the chronological order to insert two basic themes in Judaism: Laws of Kashrut and Impurities.
The Parasha speaks about the sacrifices that were offered in the Temple on the most sacred day: YOM KIPPUR, That is why this Parasha is read on Yom Kippur.
Only on the holiest day of the year,Yom Kippur, and after bringing a series of specially ordained offerings, the Kohen Gadol ("high priest") would purify himself, put on white linen garments, and enter the Kódesh Hakodashím (the holiest place of the Temple).
Through a profound preparation, the Kohen Gadol carried out the process of the Magistral Service, which, sought and obtained forgiveness from G-D for all Bnei Israel.
The Yehudim, as a sign of submission to Hashem, offered Korbanot inside the Holy Temple, it was forbidden to do so outside.
The blood of these Korbanot was thrown on top of the Altar in the Sanctuary, while the fat of the Korban had to be burnt.
The Torah states: “None of you shall eat blood, and the stranger who sojourns among you shall not eat blood, and any of you who traps a quarry of a wild animal or bird that may be eaten, and sheds its blood, he shall cover it [the blood] with dust.”
And the reason for this is: “the soul of any flesh is its blood.”
The Parasha continues detailing the forbidden relations:
-with your father or mother.
-with your father´s wife
-with your sister
-with your son´s daughter
-with your daughter´s daughter
-with the daughter or your husband´s wife
-with your mom or dad´s sister
-with your dad´s brother or with his wife
-with your daughter in law
-with a woman and her daughter
-with a woman and her sister
-with an impure woman
-with your friend´s wife
-with a man (homosexuality)
-with an animal
“For anyone who commits any of these abominations, the persons doing so shall be cut off from the midst of their people.” (Karait)