From Argentina, an exodus to see Pope Francis in Paraguay, Bolivia

Residents of Villa 21-24, a slum on the south side of the Argentine capital, hold fond memories of Pope Francis.

As archbishop of Buenos Aires, Pope Francis paid frequent visits to the mostly Paraguayan immigration population, celebrated Mass every Dec. 8 for the feast of Our Lady of Caacupe -- Paraguay's patroness -- and even joined them in the procession that followed through the alleyways of the "villa" -- short for "villas de miseria," or "misery villages," as the shanties here are known. He also baptized and confirmed the children of the residents and made the "villas" a priority, an early example of the church serving the poor, of which he often speaks.

"There's a special affection for [Jorge Mario] Bergoglio, now Pope Francis," said Fr. Lorenzo de Vedia, better known as Padre Toto, pastor in Villa 21-24. "The day he was elected people ran out into the streets as if they had won the World Cup, with the photos they have of him confirming their child, etc."

Pope Francis is scheduled to arrive Friday in Paraguay, the last leg of a three-country trip that includes Ecuador and Bolivia and takes him to some of the continent's poorer and more peripheral places.

It also takes him close to this his home of Argentina, which borders both Bolivia and Paraguay and has received influxes of immigrants, streaming south from those countries in search of improved economic opportunities or access to health care and education unavailable back home.

Residents of Villa 21-24 plan on traveling 15 hours in caravans to see the pope in their country of origin. Thousands of Argentines are expected to do the same, as the pope brings his missionary message to his home continent -- a place, he has said, urgently requiring re-evangelization.

"When news emerged that the pope was going to Paraguay, inevitably, the idea also emerged that we would go as a parish," said de Vedia, one of the 20 "curas villeros" (shanty priests) serving and living in the villas.

"It wasn't as if there was a decision made, it was as if we got swept up" by the enthusiasm, he added.

The number of Argentines heading to Bolivia and Paraguay remains unknown.

In Santa Cruz, Bolivia, where the pope is scheduled to arrive Wednesday and celebrate Mass the following day, organizers expect 600,000 visitors from outlying areas and the north of Argentina.

Bishop Jorge Lugones of Lomas de Zamora in suburban Buenos Aires said most of those going to see the pope will be immigrants or have ties to the two countries, mainly because Pope Francis is not expected to visit Argentina until next year. Observers say the pope did not want to visit Argentina until after October national elections.

"Most will go to Paraguay because it's closer, there are better routes and we have a very large Paraguayan community," Lugones said. "Probably one-third of the Paraguayan population lives here."

Organizers in Paraguay expect hundreds of thousands to attend a Mass on Saturday at the Caacupe Marian shrine. Argentine President Cristina Fernandez de Kirchner, who has mended relations with Pope Francis, confirmed she would attend a Mass Sunday in the Paraguayan capital, Asuncion.

Parishes in the diocese of Formosa, which borders Paraguay, are organizing convoys, said Bishop Jose Conejero Gallego, who expressed worry the influx would create chaos in a country with inadequate infrastructure.

"I'm a little concerned," he said. "Paraguay doesn't have the ability to receive as many people as they're expecting."

Paraguay ranks among the poorest and most corrupt countries in South America, though a boom in agricultural exports has brought double-digit growth in the gross domestic product in recent years. Emigration continues, however.

Priests serving the Paraguayan population in Argentina describe their flock as hard-working and devout and bringing unique Catholic customs to their congregations.

"[The pope] knows the Paraguayans' idiosyncrasies," said Fr. Jose Maria di Paola, another shanty priest better known as Padre Pepe, who is accompanying a group of 100 parishioners to Paraguay.

Those idiosyncrasies include popular piety, novenas and a ritual known as "agua de socorro," which de Vedia describes as a sort of "emergency baptism" administered before the actual sacrament.

Another part of the Paraguayans' faith the pope understood was the devotion to Our Lady of Caacupe. Bonifacia Acuna Vega, who immigrated to Argentina 23 years ago, recalls the community taking a statue of Our Lady of Caaccupe to the metropolitan Cathedral. On the pilgrimage back, "I had the virgin my arms and another person asked me to pass him the virgin," she said. "I turned and saw Bergoglio, wearing a poncho and with a rosary in his hand, walking with us."

The pope's attention to the community has persisted, in spite of his leaving Argentina. Acuna recalls the pope sending a greeting to the Villa 21-24 parish May 15, Mother's Day in Paraguay. All the mothers received a printed copy of the message.

"For our community, it's been like a special miracle from the Virgin," she said. "For the fervor that he's showed, for the humility he showed us -- he shared as if he were one of us -- it's something so inexplicable that today we have him as pope."