Advent is a time of preparation, to make us remember that we must be prepared for the moment that our Lord Jesus Christ returns to reign again victor over sin and death, He himself told us to be prepared, because we do not know what day is He coming, since He will come when we least expect it (Matthew 24:42-44).
What should we do then to be ready? Jesus Christ himself through all his ministry has taught us what to do, but He especially left us a guide in the Sermon on the Mount (Matthew 5, 6 and 7), the works of mercy (Matthew 25:35-40), and the sacraments (CCC 1210).
A very important part of our preparation involves receiving the sacraments instituted by Jesus Christ, to be completely part of His Church through the sacraments of initiation, namely; baptism, which frees us from all sins (CCC 1263); confirmation, which roots us more deeply as children of God and increases in us the gifts of the Holy Spirit (CCC 1303) and communion, through which we will have eternal life and are one with Christ (John 6:54-56). Blessing our unions through the sacrament of marriage, because the sanctification of our spouse is our mission (CCC 1661), and thus we love our spouse as Christ loves his Church (Ephesians 5:25). Cleanse our soul from sins committed by going to the sacrament of reconciliation, since, through repentance, confession and penance, we are reconciled again with God and His Church (CCC 1468).
Let us listen to the call made to us by John the Baptist, let us repent and confess our sins, receive the baptism of the Holy Spirit brought to us by Jesus Christ, let us practice the works of mercy, let us feed on the scriptures and on the Body and Blood of our Lord, in order to achieve eternal life.