It is an Islamic republic, but one in which only 1.4 percent of the population attend Friday prayers. Iran's religious culture encompasses the most censorious and dogmatic Shi'a Muslim clerics in the world, yet its poetry insistently dwells on the joys of life: wine, beauty, sex. Iranian women are subject to one of the most restrictive dress codes in the Islamic world, but make up nearly 60 percent of the student population of the nation's universities.