The 9/11 Memorial Prayer Grove was co-created by people who had suffered personal loss on that day. During a ceremony in memory of those who lost their lives, bagpipes playing “Amazing Grace” were the only sound to be heard on an otherwise deserted National Mall. The Sunday morning of the 2001 Prayer Vigil, flags that had flown at half-staff for 10 days around the Washington Monument were raised to full staff as the Nation and the Nation’s Capital began to heal.