封聖
Canonization is the process of declaring someone a saint and involves proving that a candidate has lived in such a way that he or she is worthy of sainthood. It is currently practised by the Roman Catholic Church and its appendages, by the Eastern Orthodox Church, and by the Oriental Orthodox Churches.
The Catholic Church sees saints as nothing more than friends and servants of God whose holy lives have nevertheless made them worthy of His special love. This is why Catholics do not "worship" saints.
Stages of Canonization in the Roman Catholic Church:
Servant of God → Venerable → Blessed → Saint
For a martyr, the pope has only to make a declaration of martyrdom, which then allows beatification, yielding the title "Blessed" 宣福 and a feast day in the Blessed's home diocese and perhaps some other local calendars. If the Venerable was not a martyr, it must be proven that a miracle has taken place by his or her intercession. To pass from Blessed to Saint, one or more miracle is necessary. (不是三次)
Many people think that honoring saints was something the Church set up later, but it was part of Christianity from the very beginning. As a matter of fact, this practice came from a long-standing tradition in the Jewish faith of honoring prophets and holy people with shrines. The first saints were martyrs, people who had given up their lives for the Faith in the persecution of Christians.