Fact. Maybe so that they would always be a part of you, literally. In Australia, they do things a little differently at the funeral. When the body of a Bushman was lowered into the ground, there would be a man waiting for him to slice bits of his flesh to give to mourners to eat. Different family members were allocated different family members to nibble on... Children were not allowed to eat their father, nor the father his children but everyone was allowed to eat their mother and vice versa. You were allowed to eat your siblings partners too because, why not?