"I'm so happy and excited that it will be Krakow because I'm studying medicine there," said Magdalena Witowska.
"This is really going to strengthen our faith and unite the youth in Poland," she remarked.
The 23-year-old said that what she best likes of Pope Francis is that on his way to the stage, he blessed the children.
"I'm very, very happy, I like everything of Pope Francis!" exclaimed Bartosz Kot, another pilgrim. "This is going to really help Poland."
Bana? said she loved that the Pope said "we shouldn't be afraid of going to the world and proclaiming Jesus."
Bl. John Paul II, the former Archbishop of Krakow, gave great energy to World Youth Day celebrations before his death in 2005.
His presence was felt in Rio, where a case containing a relic of the late pontiff was on display.
It will remain in Brazil until Oct. 13 for veneration by young people in the Saint Sebastian Cathedral of Rio de Janeiro.
At the end of the Mass, Polish Cardinal Stanislaw Rylko, president of the Pontifical Council for the Laity, addressed the millions of youth gathered at the beach.
Pope Francis then gave five pairs of young people a prayer book and a small copy of the Corcovado statue of Christ the Redeemer, the symbol of "The Marvelous City."
After the Angelus, Pope Francis went to his Sumaré residence for lunch and a brief break.
On Sunday afternoon he will address the Latin American Episcopal Conference. Later, he will speak at a meeting with 15,000 volunteers of the 60,000 total that helped out in World Youth Day.
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Pope Francis will then depart at 7 p.m. local time and arrive to Rome tomorrow, Monday at 11:30 a.m. Rome time.