After a decade-long stint growing a popular student ministry at Baylor University in Texas, Louie Giglio and his wife Shelley moved to Atlanta in 1995 and started the Passion conferences, a national collegiate ministry that used live worship music and teaching to encourage young people to live for the glory of God. Yearly Passion events served as the movement's centerpieces: multi-day, festival-styled gatherings whose attendance grew exponentially from a couple of thousand when Passion held its first get-together in 1997 to up to 40,000 in 2000. Since the second gathering in A...