A shared material, distinct practices
Fire can illuminate, heat, transform and destroy. Those physical qualities make it symbolically powerful, but they do not create one meaning across cultures. The careful question is not “What does fire symbolize?” in the abstract; it is “What do participants and records say fire does here?”
Three documented examples make the distinction clear. They are not variants of one global ritual, and none should be used to explain the others.
Sadeh and Nestinarstvo
UNESCO describes Sadeh/Sada in Iran and Tajikistan as a celebration marked by song, dance and prayer around a fire, connected with the end of the coldest winter days and preparation for agricultural work. Its renewal language belongs to that seasonal setting.
UNESCO’s record for Nestinarstvo in the village of Bulgari, Bulgaria, describes a community panagyr culminating in fire-dancing connected with veneration of Saints Constantine and Helena. The documentation identifies a particular place, calendar and religious framework.
Ritual fire in Japanese Esoteric Buddhism
In The Met’s essay on the Kings of Brightness, the goma-e rite burns wooden talismans or possessions. The act symbolically destroys defilements within a specific Esoteric Buddhist practice.
These examples support a limited conclusion: renewal, light and transformation can be meanings of fire in particular traditions. They are not universal definitions, and this site does not invent ritual details where a source is silent.