 It is worth noting that the concept of "Salaf" (السلف) does not exist in Shia theology in contrast to Sunni Islam as well as Christianity (a similar concept referred to as "original Christianity").Political Islam consists of a broad array of mass movements in the Muslim world, which share a conviction that political power is an essential instrument for constructing a God-fearing society.They believe that Muslims can fulfill their religious obligations only when public law sanctions and encourages pious behavior.