Feastday: April 25
Patron of notaries
The second Gospel was written by St. Mark, who, in the New Testament, is sometimes called John Mark. Both he and his mother, Mary, were highly esteemed in the early Church, and his mother's house in Jerusalem served as a meeting place for Christians there.
St. Mark was associated with St. Paul and St. Barnabas (who was Mark's cousin) on their missionary journey through the island of Cyprus. Later he accompanied St. Barnabas alone. We know also that he was in Rome with St. Peter and St. Paul. Tradition ascribes to him the founding of the Church in Alexandria.
St. Mark wrote the second Gospel, probably in Romesometime before the year 60 A.D.; he wrote it in Greek for the Gentile converts to Christianity. Tradition tells us that St. Mark was requested by the Romans to set down the teachings of St. Peter. This seems to be confirmed by the position whichSt. Peter has in this Gospel. In this way the second Gospel is a record of the life of Jesus as seen throuhh the eyes of the Prince of the Apostles. His feast day is April 25. He is the patron saint of notaries
What is Transubstantiation?
At the Last Supper when Our Lord said, "This is My Body," the entire substance of the bread was changed into His Body; and when He said, "This is My Blood," the entire substance of the wine was changed into His Blood. After the substance of the bread and wine had been changed into Our Lord's Body and Blood, there remained only the appearances of bread and wine.
Appearances of bread and wine: color, taste, weight, shape and whatever else appears to the senses.
The substance of anything is what it is. The appearances (sometimes called 'accidents' but not in the sense of 'mistakes'--it just means the non-essential aspects) are what it looks like, or feels like, or tastes like, etc. For example, an apple is a substance. It looks red and round. It feels smooth. It tastes sweet. Redness, roundness, smoothness, and juiciness are appearances.
The change of the entire substance of bread and wine into the Body and Blood of Christ is called Transubstantiation.
There are different kinds of changes which may take place in things: A change of appearances happens when a green apple ripens to a red apple. A partial change of substance happens when oil burns and changes to smoke. A complete change of substances (transubstantiation) happens only in the Eucharist.
No one will ever understand transubstantiation fully, but even the effort to understand it is pleasing to Our Lord. It is faith seeking understanding, and everything new we learn about Jesus is a new reason to love Him.
Church of the Holy Spirit in Rome. The image was blessed for the first time by John Paul II in 1994. Mother M. Wendy was present for this blessing. St. Faustina prophesied about this blessing in her Diary #1044
" Suddenly, God's presence took hold of me, and at once I saw myself in Rome, in the Holy Father's chapel and at the same time I was in our chapel. And the celebration of the Holy Father and the entire Church was closely connected with our chapel and, in a very special way, with our Congregation. And I took part in the solemn celebration simultaneously here and in Rome, for the celebration was so closely connected with Rome that, even as I write, I cannot distinguish the two but I am writing it down as I saw it. I saw the Lord Jesus in our chapel, exposed in the monstrance on the high altar. The chapel was adorned as for a feast, and on that day anyone who wanted to come was allowed in.  The crowd was so enormous that the eye could not take it all in. Everyone was participating in the celebrations with great joy, and many of them obtained what they desired. The same celebration was held in Rome, in a beautiful church, and the Holy Father, with all the clergy, was celebrating this Feast, and then suddenly I saw Saint Peter, who stood between the altar and the Holy Father. I could not hear what Saint Peter said but I saw that the Holy Father understood his words.... "
The Holy Father John Paul II appointed the church of Santo Spirito in Sassia to be The Divine Mercy Spirituality Center (from 1 January 1994).
SISTERS OF REPARATION
"Whatsoever you do, do it from the heart, as to the Lord, and not to men: Knowing that you shall receive of the Lord the reward of inheritance. Serve ye the Lord Christ" Colossians 3:23-24.