On the first of October, Pope Leo XIV will gather with hundreds of children in the Vatican Gardens to begin a week-long prayer movement that will ripple outward to a million voices across the world. From the Bolivian Amazon to Zimbabwe, from Sudan to Paraguay, communities in conflict and hardship will join in praying the Rosary — each in their own language, on their own day, under their own sky. The initiative, now in its third decade, rests on a quiet conviction: that prayer, when multiplied across enough hearts, becomes something larger than devotion — a collective human plea for peace.