This is a metascientific paper which attempts to put into perspective the extensive knowledge of the phenomenon of obsessional neurosis and such hypotheses as there are about it. Reaction-formation and sublimation are described and distinguished by the idea of nuclear and orbital introjects. The author hypothesizes that anal attacking feelings may be used against feces. The process of turning aggressively against the introject of feces to get rid of it by defecation is called 'repugnant' and is considered a normal characteristic to differentiate it from reaction-formation in an abnormal character structure. Wisdom plans to consider further theoretical problems in this area in a future paper.