We know in our mind that we should be able to forgive our enemies and love our parents, but in the heart we feel I can never forgive them for what theyve done. So then we either feel anger and resentment, or we begin to rationalize: Because my parents were so bad, so unloving, so unkind, they made me suffer so much that I cant forgive or forget. Or: Theres something wrong with me. Im a terrible person because I cant forgive. When this happens, Ive found it helpful to have metta for my own feelings.