A video depicts children singing as they evacuate Camp Mystic amid the Texas floods, showing how faith and prayer can be used to cope with trauma.

At Camp Mystic, a Christian summer camp in Hunt, Texas, where officials are grieving the loss of 27 children and counselors, belongings of the young campers were strewn about the flooded floors of a dormitory, while other items, including a pink backpack and a Camp Mystic T-shirt, were found along the bloated Guadalupe River, photos show.

Camp staff went to bed following what seemed like routine flood warnings. Within hours, they were fighting for survival. “Chaos struck almost instantaneously.”