One of the most significant novelties took place at the beginning of the Mass on Sunday with a visit to the grottoes underneath St. Peter's Basilica to pay homage at the tomb of the first Pope, St. Peter.
Monsignor Valenziano explained that Benedict XVI had in mind to underline that he "was not elected successor of John Paul II, but of Peter."
The Holy Father, accompanied by the Eastern patriarchs, went down from the Altar of the Confession to the first Pope's sepulcher. At that moment, two deacons collected the two symbols that would later be imposed on the Pope: the Fisherman's Ring and the pallium, which had been laid by the tomb throughout the night.
"I leave from where the apostle arrived," Benedict XVI said before processing to St. Peter's Square.
The liturgist of the St. Anselm Pontifical Liturgical Institute explained that in the past, popes were sometimes crowned in the Sistine Chapel, while others were crowned in the basilica.
However, Benedict XVI began his pontificate solemnly in St. Peter's Square "because it is the place of Peter's martyrdom," he explained, and not for logistical reasons.