Taboo
The psychoanalytical approach says that taboos exist because of people’s unconscious thoughts and feelings.  For example, Sigmund Freud thought that children naturally have sexual desires towards family members.  In his book ‘’Totem and Taboo,’’ Freud wrote that taboos about incest developed to make sure people would not act on these sexual desires.   Freud thought that incest and patricide are the only “universal” taboos (meaning these behaviors are taboo in almost all societies and cultures).  He said that these taboos formed the basis of modern societies.