Armin Langroudi’s researches in the history of Iranian religions have always been carried out with a scientific method and based on the latest achievements and researches of Iranology. The microscopic analysis of the social history of Iranians from the beginning of their emergence on the stage of history, as well as the examination of their beliefs according to the researches of well-known Iranian scholars, form the basis of the author’s theology and historiography research. Therefore – as an example – to show why the Zoroastrian religion became more prominent during the time of Darius, he deals with how this king came to power, to show the necessity of this event. Therefore, this book is not only a research about ”Iranian beliefs”, but also a review of their phenomena, that is, ”who are Iranians”.
In this book, in addition to his main research, the author, in a side way, seeks to clarify the process of formation of thoughts that later formed the Arab religion ruling Iran. A closer acquaintance with these events will guide us to why and how Islam is ”for him” and make it easier to understand its roots. Here, the author has once again tried to show his view that religions are ”creative” and not ”creative”, and this time by focusing on Iranian religions. A view that gives religions a historical character and thus separates them from the false ”sanctity” woven around them.