On Easter Sunday in 1958 , at the age of 16 , Norberg personally witnessed the crash of Capital Airlines Flight 67 while she was awaiting its arrival into Tri City Airport , MI . Both of her parents were killed in the crash , and Norberg has reported that this experience profoundly affected her understanding of spirituality and the need for healing in all persons . Her book '' Ashes Transformed : Healing From Trauma '' is based on similar stories of survivors of the September 11 attacks in New York City , which she witnessed from her office on Staten Island
September 11 attacks
September 11 attacks
Tilda Norberg