Jewish law defines the mourning process for a parent, spouse, sibling, and child. But what happens when we lose someone who does not fit in those categories? Author of “Faith Unravels: A Rabbi’s Struggle With Grief and God,” Rabbi Daniel Greyber will recall his own experience of being a forgotten mourner after the death of two close friends and we will explore how we can build communities that acknowledge all who grieve and help them to heal.