The first aliyah gives the duties of the priest in connection with the burnt offering and the meal offering. The last line says that any food that comes in contact with the holy meal offering, itself becomes holy.
The commentaries say that this is because the thing that touched the holy object absorbed some of the taste of the holy object and that caused its holiness to be absorbed with the taste. This teaches that the mere taste of the food has the same status as the food itself. (This is why any food cooked with nonkosher food or even in a nonkosher pot, becomes itself nonkosher.)
