The Catholic Church of the United States is asking all Catholics to reflect on the Eucharist, the real presence of Jesus Christ under the form of bread and wine. At every Mass, we encounter Jesus Christ. 

Around the year 150, very early in the history of the Church, Saint Justin wrote a description of Sunday Mass. Read his words and note that what he describes is still our form of worship. The Catholic Church has preserved and still teaches the faith of the Apostles! Also note that he links participation at Mass with help for the poor: 

And this food is called among us Εὐχαριστία [the Eucharist], of which no one is allowed to partake but the one who believes that the things which we teach are true, and who has been washed with the washing that is for the remission of sins, and unto regeneration, and who is living as Christ has enjoined. For not as common bread and common drink do we receive these; but in like manner as Jesus Christ our Savior, having been made flesh by the Word of God, had both flesh and blood for our salvation, so likewise have we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transformation are nourished, is the flesh and blood of that Jesus who was made flesh. For the apostles, in the memoirs composed by them, which are called Gospels, have thus given us what was enjoined upon them; that Jesus took bread, and when He had given thanks, said,” This do in remembrance of Me, this is My body”; and that, after the same manner, having taken the cup and given thanks, He said, “This is My blood”; and gave it to them. 

And we afterwards continually remind each other of these things. And the wealthy among us help the needy; and we always keep together; and for all things with which we are supplied, we bless the Maker of all through His Son Jesus Christ, and through the Holy Spirit. And on the day called Sunday, all who live in cities or in the country gather together to one place, and the memoirs of the apostles or the writings of the prophets are read, as long as time permits; then, when the reader has ceased, the president verbally instructs, and exhorts to the imitation of these good things. Then we all rise together and pray, and, as we before said, when our prayer is ended, bread and wine and water are brought, and the president in like manner offers prayers and thanksgivings, according to his ability, and the people assent, saying Amen; and there is a distribution to each, and a participation of that over which thanks have been given, and to those who are absent a portion is sent by the deacons. And they who are well to do, and willing, give what each thinks fit; and what is collected is deposited with the president, who helps the orphans and widows and those who, through sickness or any other cause, are in want, and those who are in prison and the strangers sojourning among us, and in a word takes care of all who are in need. But Sunday is the day on which we all hold our common assembly, because it is the first day on which God, having brought about a change in the darkness and matter, made the world; and Jesus.