"When a deep injury is done us, we never recover until we forgive."

The definition of forgive to me and to may others is to stop feeling angry or resentful toward someone for an offense, flaw or mistake. What Alan Paton is trying to say is if you are injured from the inside the only way to heal or to recover is to forgive. In my opinion this is the only way to heal or recover if you are hurt or injured inside emotionally and physically.