the Second Vatican Council and the introduction of the Mass of Paul VI, or Novus Ordo. Restoration of all or some parts of the traditional Mass have been supported by Burke as part of a "reform of the reform", modifying what he sees as deficiencies in the implementation of the newer Mass of Paul VI. In 2012, Burke said the following regarding the liturgical changes that took place after the council: Burke referred to Summorum Pontificum as "the most splendid contribution of the pontificate of Pope Benedict XVI". Over the years, Burke has frequently offered the traditional form of the Mass, including regularly performing ordinations for the ICKSP and the Priestly Fraternity of Saint Peter, both traditionalist groups whose priests offer only the older form of the Mass. On March 2, 2011, Burke said that too many priests and bishops treat violations of liturgical norms as something that is unimportant, when they are actually "serious abuses" that damage the faith of Catholics. He criticized a perceived lack of reverence in the way the modern liturgy is sometimes conducted, stating "If we err by thinking we are the center of the liturgy, the Mass will lead to a loss of faith." In a 2015 interview, Burke reiterated his concern that man has become center of Mass, saying that "In many places the Mass became very priest‑centered, it was like the 'priest show.' This type of abuse leads to a loss of the sense of the sacred, taking the essential mystery out of the Mass. The reality of Christ Himself coming down on the altar to make present His sacrifice on Calvary gets lost." Burke blamed modernization of the liturgy after the Second Vatican Council for declining Mass attendance. "In some cases it actually became hard for people to bear because of illicit insertions, foreign agendas, and imposition of the personalities of priests and congregations into the liturgy to the point that people began to think that the Mass was some sort of social activity...If one understands what the Mass truly is — Christ Himself coming down from Heaven to renew the sacrifice of Calvary — how could you possibly not be there on Sunday?" he asked. Burke condemned Traditionis custodes, a July 2021 motu proprio issued by Pope Francis which effectively reversed Summorum Pontificum by placing limits on priests offering the Traditional Form of the Mass. He said that he could