Guilt is a cognitive or an emotional experience that occurs when a person believes or realizes—accurately or not—that he or she has compromised his or her own standards of conduct or has violated a universal moral standard and bears significant responsibility for that violation. It is closely related to the concept of remorse.
Guilt is an important factor in perpetuating obsessive–compulsive disorder symptoms. Guilt and its associated causes, merits, and demerits are common themes in psychology and psychiatry. Both in specialized and in ordinary language, guilt is an affective state in which one experiences conflict at having done something that one believes one should not have done (or conversely, having not done something one believes one should have done). It gives rise to a feeling which does not go away easily, driven by 'conscience'. Sigmund Freud described this as the result of a struggle between the ego and the superego – parental imprinting. Freud rejected the role of God as punisher in times of illness or rewarder in time of wellness. While removing one source of guilt from patients, he described another. This was the unconscious force within the individual that contributed to illness, Freud in fact coming to consider "the obstacle of an unconscious sense of guilt...as the most powerful of all obstacles to recovery." For his later explicator, Lacan, guilt was the inevitable companion of the signifying subject who acknowledged normality in the form of the Symbolic order.
Alice Miller claims that "many people suffer all their lives from this oppressive feeling of guilt, the sense of not having lived up to their parents' expectations....no argument can overcome these guilt feelings, for they have their beginnings in life's earliest period, and from that they derive their intensity." This may be linked to what Les Parrott has called "the disease of false guilt....At the root of false guilt is the idea that what you feel must be true." If you feel guilty, you must be guilty!