It may concern the person himself (self), or others (other(s)), or a value system (ethnic group, religion, city, nation…). It can be made up of emotional or moral elements.
The same word can designate an emotion or feeling depending on whether it is experienced as a sudden affective state, accompanied by physiological changes, or whether it is experienced as a stable affective state, without sudden physiological reactions.
See also: Emotion, emotions.