Catechism of the Catholic Church
“The liturgy of the Word and liturgy of the Eucharist together form ‘one single act of worship’; The Eucharistic table set for us is the table both of the Word of God and of the Body of the Lord. Is this not the same movement as the Paschal meal of the risen Jesus with his disciples? Walking with them he explained the Scriptures to them; sitting with them at table ‘he took bread, blessed and broke it, and gave it to them.’”
Source: Catechism of the Catholic Church #1346