I have a question along these lines…How does a saint become a saint? Do they have to do something extraordinary or are they just regular people?
At it’s most basic level, a saint is any human that makes it to heaven.
For most people, it is impossible for us to know whether or not they made it to heaven
definitively, because we don’t know the state of their soul. However, the church does also officially “proclaim” saints. These are those Catholics that have lived such extraordinary lives, that there is no doubt that they have made it to heaven. The purpose of doing this is to hold these people up as the ultimate Catholic role models. To see their statues in church is a bit like walking into the NFL Hall of Fame for football. These are people to be emulated (but of course, they are not god).
Most holy Biblical figures from the Old and New Testament are saints by default. For example, the Apostles, Paul, Mary and Joseph, Abraham, Issac, Jacob, Joseph, Moses, and so on. Also, anyone martyred for the faith is considered a saint. This especially includes the early martyrs of the church from the Roman persecutions. Until about the ninth century, saints were proclaimed by popular acclaim, and further recognized as holy by the local bishop. These became local saints. Occassionally, one would become so famous, that they would be universally recognized, such as St. Nicholas or St. Patrick. In the ninth century, the pope began a process to standardize the proclamation of saints and make it universal.
Today, a saint’s cause can still be put forward to the Vatican by popular acclaim. A thorough investigation begins. If the person is found to be a good person and worthy of further study, all the details of the person’s life will be exaustively examined. If they are still found to be a holy person, they will be declared “Venerable.” This judgment states that the Church (made up of flawed humans) thinks that the person could be a saint. Now, they have to wait for God’s judgment on the matter. If a true miracle can be found to have occurred through the intercessionary prayer of that person, then the person is “Beatified”, and will become known as “Blessed so-and-so” (For example, Blessed Mother Teresa). If a
second miracle can be confirmed, the person is “Canonized”, and officially becomes a saint. These miracles are considered the confirming, infallible judgment of God that the correct verdict was rendered in the investigation.