Zevachim 99: Ritual Impurity in a Priest and His Access to Truman

In yesterday's daf, we were introduced to a new Mishna.  It explained that there is a principal based on a priest who was ritually impure but immersed and was waiting for night to complete the purification process, a priest who has not brought an atonement offering yet (ex. a zav and leper) and cannot access his food, a priest in acute mourning, blemished priests.  The principal is that any priest unit for service does not receive a share of the sacrificial meat that day.  Anyone who has no share of the meat has no share in its hide, either.  If the priest was ritually impure when the blood was sprinkled but ritually pure when the fat was burned, he still does not receive a share of the meat (Leviticus 7:33).  Sprinkling blood is required to have a share of the sacrifice.

Today's daf holds the Gemara about yesterday's Mishna.  The rabbis argue about each factor - ritual impurity or purity, timing, sprinkling, the food eaten or foregone, etc.  Then they present a number of cases to attempt to prove or disprove different arguments.  While the ritual status and diet of a Temple-era priest may not be significant today, it could be useful to learn the rabbis' understandings of ritual status and how/whether that might affect one's functioning.