Tomorrow is the 2nd Sunday of Easter it is also known as Divine Mercy. Later today Pope Francis will share more details of the Holy Year of Mercy in something called a Papal Bull - to learn more about this watch the video below.
As advertised in the poster for Divine Mercy Sunday - there will be opportunity for the sacrament of reconciliation which is a wonderful sign of mercy and forgiveness of God. This sacrament has many names, as the Catechism of the Catholic Church says:
CCC 1424 It is called the sacrament of confession, since the disclosure or confession of sins to a priest is an essential element of this sacrament. In a profound sense it is also a "confession" - acknowledgment and praise - of the holiness of God and of his mercy toward sinful man.
It is called the sacrament of forgiveness, since by the priest's sacramental absolution God grants the penitent "pardon and peace."
It is called the sacrament of Reconciliation, because it imparts to the sinner the love of God who reconciles: "Be reconciled to God." He who lives by God's merciful love is ready to respond to the Lord's call: "Go; first be reconciled to your brother."