That’s spiritual materialism and a meaningless statement. Grievance and forgiveness are the same thing. Just depends what side you are looking from. If a father sexually abuses his children, that child needs to grieve and is justified. The father needs forgiveness. But it’s the same event about the same trauma. You are just changing the words you use to describe a division that’s not there. More importantly to tell a sexually abused child they need to forgive their abuser is literally toxic. It’s gaslighting them for severe pained caused. Same goes for any kind of trauma or pain. This idea that both sides need to forgive is a foolish Christian belief… no sane person can actually live by it in practice without causing severe harm to themselves and perpetuating the behavior. By doing so you are forcing the grieving person to accept it and reinforce it in the other.