The Holy See press office said that the pope went to the basilica to entrust the Virgin Mary with his upcoming trip to Canada.
The pope is scheduled to travel to the Canadian cities of Edmonton, Quebec City, and Iqaluit from July 24-29. There he will meet members of Canadian indigenous groups, residential school abuse survivors, and Catholics.
Pope Francis is expected to issue an apology in Canada on behalf of the Catholic Church for the abuses committed against indigenous students in Catholic-run residential schools.
The pope met with representatives of the Métis, Inuit, and First Nations peoples at the Vatican at the end of March and beginning of April and expressed sorrow for the harm they have suffered.
He has said that his trip to Canada will be a “penitential pilgrimage” to bring healing and reconciliation.
Pope Francis will also visit the Cathedral-Basilica of Notre-Dame de Québec on July 28. The minor basilica, founded and dedicated to the Virgin Mary in 1647, was the first parochial church in Canada.