I have now read quite a bit on DPI, and Yuri Yakimov's tale of bright lights, and approaching "swinging sets of moving lights" in a mine pit, and an exactly similar account given by Forest Ranger Rudkovskiy. All note frightening, approaching "swinging sets of lights" that approach only at a human glance. An analogy is made to the DPI & ball lightning, perhaps....A further example is given of an experienced taiga hunter who undressed and moved about the taiga for days before dying. All these examples seem to include bright lights in the wilderness darkness.
However in the west, we also have in North America (where I am a forester) huge tundra and vast Northern forests, with immense Northern mountain ranges, its all very similar in our Canada. Yet all these corroborating sights come from only one country, Russia. How could this be, I think. We in the West are trained to be rational only. Superstition is out. it does not make sense that no country other than Russia could have such events, surely? The topography and climate in Canada are the same.
Is it possible that something deep within Russia's society and culture and history, could be behind all these similar stories? Why no bright swinging lights in our huge northern forests?