What are the names of the sacraments that serve to build up communion in the Church?
Someone who is baptized and confirmed can receive moreover a special mission in the Church in two special sacraments and thus be enlisted in the service of God: Holy Orders and Matrimony.
The two sacraments have something in common: They are directed to the good of others. No one is ordained just for himself, and no one enters the married state merely for his own sake. The sacrament of Holy Orders and the sacrament of Matrimony are supposed to build up the People of God; in other words, they are a channel through which God pours out love into the world.
What happens in Holy Orders?
The man who is ordained receives a gift of the Holy Spirit that gives him a sacred authority that is conferred upon him by Christ through the bishop.Being a priest does not mean just assuming an office or a ministry. Through Holy Orders a priest receives as a gift a definite power and a mission for his brothers and sisters in faith. (YOUCAT questions 248 & 249)