Pope Leo XIV is presiding over a youth rally in Barcelona. It's notable for its frank discussion of depression, domestic violence and "toxic" family relationships. The American pope is urging young people to persevere in their faith when times are dark. The event featured several nods to Catalan culture, including a demonstration of the region's famed human tower acrobats, known as castellers. Leo also spoke in Catalan, more than initially foreseen.