The most powerful affect of Baptism is the purification from our sins. The Eucharist is the sacrament began by Christ at the Last Supper. He gave thanks, consecrated the bread and wine, and gave his Body and Blood as spiritual nourishment to his Apostles. Once we accept the Eucharist Jesus is within our body and us in him. This sacrament nourishes our spiritual life and increases grace.
Confirmation is the third Sacrament of Initiation.
The church teaches that confirmation is necessary for completion of baptismal grace. Confirmation leads the individual into adulthood. Once confirmed the individual is obligated to spread the word of God and defend the faith by deeds and words. The sacred chrism is used in the sacrament of Confirmation and must be consecrated by a bishop. The sacraments of Penance and Reconciliation are very necessary, but many religions are against this sacrament.