Most Persians follow Zoroastrianism ever since the Islamic Jihad.  It was a big religion native to the area back before the original Islamic conquest, and it’s made a big comeback.  Looking from the outside, the faith seems fairly simple.  Creator God that’s good, beware that nasty guy that wants to destroy everything, and the best way to beat him is doing good onto others.  Seems a bit familiar to me.  I’m rather in favor of starting out by being nice to others.