The light pillars that appear in the film are called light pillars in English. From a distance, it seems that the light pillar above a straight line is straight upwards. Somebody is throwing light from the earth or the torch of the searchlight. The strange pebble is actually the reflected light on the crystals of ice or the light reflected from the sun or any other source. Especially in areas where the snow becomes flat and smooth, the scenes are seen at sunset or full moon night. Such a scene is reflected in the snowflake reflectivity.
The image was taken from the city of Sigulda in Latvia in 2009.