For his inaugural Mass and again on Palm Sunday, he opted for an open-air "popemobile," foregoing the safety-glass-enclosed version that became the vehicle of choice for public processions following an assassination attempt on Pope John Paul II.
The changes have, in part, led to overflow crowds for the new pope's public appearances and headaches for his security detail; he has shown he is willing to break out of the bubble to greet the faithful and kiss seemingly every baby in sight.
"He's making a very special place for the poor, the disenfranchised," Rosica said. "He's kind of taken the world by storm by the symbols and the signals he's given."
Monsignor Kevin Irwin, a professor at the Catholic University of America, told CNN from Rome that foot-washing "has always been - for priests, bishops and popes throughout the centuries - a role reversal. That is to say, those who are marginalized become center stage and the one who is usually center stage washes their feet."
Irwin said Francis' choice to wash prisoners' feet fits in with a broader narrative of the new pope's journey. Whereas his predecessor, Benedict, came to the papacy by way of the scholarly library and high Vatican offices (Rosica called him "the Mozart of theologians") Francis "has a pastor's heart."
"In that sense he's probably more of a journeyman than he is a highly accomplished scholar," Irwin said. "In the process we'll all get on board with the journeyman." And journeymen, he said, "make the world work."