Journalist Maya Kroth was in Mexico City this fall, when a magnitude 7.1 earthquake struck. Hundreds of people died; it was the deadliest quake in a generation. But in the weeks after the earthquake, Maya watched something happen out in the streets of Mexico City that made her think about disasters a little differently. As she would learn, tragedy has a way of bringing out the best in people -- a way of weaving us together into a giant invisible tapestry, held together by our common humanity.