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Leah Pepsin, 6, and Lucas Daniel, 6, both from Philadelphia, look through prayer ribbons at the Knotted Grotto outside the Cathedral Basilica of SS. Peter and Paul during the World Meeting of Families Sept. 25 in Philadelphia. Thousands of visitors added their prayer intentions to the project that was inspired by the image of Mary Undoer of Knots.

Photo: CNS photo / Joshua Roberts