The customs and traditions of a nation constitute an integral part of its intangible cultural heritage and represent one of the most valuable sources for understanding the underlying layers of the historical thoughts, perceptions, and belief systems of its people. Many of these beliefs, some of which have survived into the present day, are deeply rooted in antiquity. One notable manifestation of such intangible heritage can be observed in popular perceptions and attitudes toward fire. Accordingly, the present study first seeks to identify, examine, and analyze those fire-related beliefs and rituals that have persisted from the past and remained in practice during the last decade. To this end, the geographical scope of the research is confined to eastern and northeastern Iran, namely the region of Khorasan. In a subsequent stage, an attempt is made to trace the origins of these customs and beliefs through ancient Iranian sources and texts and to compare contemporary practices with their historical antecedents. The present research was conducted within a qualitative framework, employing a descriptive-analytical approach grounded in ethnographic methodology. Data were collected through a combination of library research, field observations, examination of extant practices, and interviews with informed individuals, including local residents and scholars specializing in the subject. The findings indicate that a number of contemporary fire-related beliefs and ceremonies in Khorasan, although transformed in both form and function over time, still retain discernible roots in Avestan and Pahlavi texts as well as in ancient Iranian religious and cultural traditions. As time has passed, the original meanings and underlying rationales that gave rise to these rituals have gradually faded from collective memory and become largely forgotten by their practitioners. Consequently, these practices have increasingly assumed the character of customary traditions and have survived primarily in the form of symbolic rituals.