Four decades ago everything has changed in Iran. Becoming the theocracy, Iran implemented religious rules into the law as well as social relations. Taqiyyah is one of them. This term originating from the time of the split of Shia and Sunni, basically means acceptation for dissimulation for defending the faith and is quite often used by religious leaders for achieving their goals. Contemporary Iran in many aspects of daily life seems to function on the basis of taqiyyah. It is visible in people's relation to the government, religion, environment, other people.