Absolution implies there is guilt to be absolved of. Guilt implies wrong doing. I think therapy address the guilt an individual may be feeling by exploring whether or not we have something to be feeling guilty of in the first place. Although I don't sit in other people's therapy sessions, I would imagine most perceive themselves as guilty without warrant. I think a therapist would typically help one understand when we are carrying a distorted view blaming ourselves and feeling guilty for no reason. If there are things we are in fact guilty of, therapy can't provide absolution unless the guilt is associated with something that has occurred within the therapy relationship itself. To be absolved of guilt that we truly own, I think therapy can only go so far as to help us understand the steps we need to take to gain release or absolution. Then it's up to us.