Aliya Summary: The Kohanim were chosen by G‑d to be His holy servants. They do not receive an inheritance (portion) in the Land of Israel, because “G‑d is their inheritance.” Instead, the Kohanim are the beneficiaries of various priestly gifts; selections of meat from certain sacrifices, as well as tithes from crops and animal shearings.
The three sections of the animal that the Kohanim get to keep are the foreleg, the jaw (tongue) and part of the intestines. Rashi explains that this corresponds to the story of Pinchas, when Pinchas raised his hand (foreleg is the equivalent of the hand), prayed (tongue) and stabbed the transgressors through the stomach (intestines).It’s the butterfly effect, where one string of actions leads to perpetual benefit for every generation that follows, that we should all wish to emulate. You never know what one act of kindness, one little Mitzvah (which may not be so little if we realized its butterfly effect), one smile, can perpatuate.