Consists in the observance, according to prescribed manners, of certain actions designed to establish - liason between the performing individual and the super natural powers.
According to whom, social system has passed through three systems namely : Savagery social system, Barbarion social system and civilized social system?
. . . . . . . . does not consist only of adhoc responses to a particular stimuli but also of a system of expectations relative to individuals own need disposition.